AGREEMENT AND PLAN OF MERGER

                                  by and among


                                NOVAVISION, INC.


                    AMERICAN CONSOLIDATED LABORATORIES, INC.

                                       and

                              NV ACQUISITION, INC.










                                                                                                              
ARTICLE I
         DEFINITIONS..............................................................................................1

ARTICLE II
         THE MERGER...............................................................................................6
         2.1      The Merger......................................................................................6
         2.2      Conversion of Shares............................................................................6
         2.3      Closing.........................................................................................6
         2.4      Deliveries at Closing...........................................................................6
         2.5      Effectiveness of The Merger.....................................................................6
         2.6      Further Assurances..............................................................................7

ARTICLE III
         REPRESENTATIONS AND WARRANTIES OF ACL AND NVA............................................................7
         3.1      Organization, Qualification and Corporate Power of ACL and NVA..................................8
         3.2      Capitalization..................................................................................8
         3.3      Noncontravention................................................................................8
         3.4      Financial Statements............................................................................9
         3.5      Brokers' Fees...................................................................................9
         3.6      Investment......................................................................................9
         3.7      Title to Assets.................................................................................9
         3.8      Subsidiaries....................................................................................9
         3.9      Events Subsequent to Most Recent Fiscal Year End................................................9
         3.10     Undisclosed Liabilities........................................................................11
         3.11     Legal Compliance...............................................................................11
         3.12     Tax Matters....................................................................................11
         3.13     Real Property..................................................................................13
         3.14     Intellectual Property..........................................................................13
         3.15     Tangible Assets................................................................................15
         3.16     Inventory......................................................................................15
         3.17     Contracts......................................................................................16
         3.18     Notes and Accounts Receivable..................................................................16
         3.19     Liabilities....................................................................................16
         3.20     Powers of Attorney.............................................................................16
         3.21     Insurance......................................................................................16
         3.22     Litigation.....................................................................................17
         3.23     Product Warranty...............................................................................17
         3.24     Product Liability..............................................................................17
         3.25     Employees......................................................................................17
         3.26     Employee Benefits..............................................................................18
         3.27     Guaranties.....................................................................................18
         3.28     Environmental Protection.......................................................................18
         3.29     Disclosure.....................................................................................18






ARTICLE IV
         REPRESENTATIONS AND WARRANTIES CONCERNING NOVA AND ITS
         SUBSIDIARY..............................................................................................19
         4.1      Organization, Qualification, and Corporate Power...............................................19
         4.2      Capitalization.................................................................................19
         4.3      Noncontravention...............................................................................20
         4.4      Brokers' Fees..................................................................................20
         4.5      Title to Assets................................................................................20
         4.6      Subsidiaries...................................................................................20
         4.7      Financial Statements...........................................................................21
         4.8      Events Subsequent to Most Recent Fiscal Year End. .............................................21
         4.9      Undisclosed Liabilities........................................................................23
         4.10     Legal Compliance...............................................................................23
         4.11     Tax Matters....................................................................................23
         4.12     Real Property..................................................................................24
         4.13     Intellectual Property..........................................................................25
         4.14     Tangible Assets................................................................................27
         4.15     Inventory......................................................................................27
         4.16     Contracts......................................................................................27
         4.17     Notes and Accounts Receivable..................................................................28
         4.18    Liabilities.....................................................................................28
         4.19     Powers of Attorney.............................................................................28
         4.20     Insurance......................................................................................28
         4.21     Litigation.....................................................................................28
         4.22     Product Warranty...............................................................................29
         4.23     Product Liability..............................................................................29
         4.24     Employees......................................................................................29
         4.25     Employee Benefits..............................................................................29
         4.26     Guaranties.....................................................................................30
         4.27     Environmental Protection.......................................................................30
         4.28     Disclosure.....................................................................................30

ARTICLE V
         PRE-CLOSING COVENANTS...................................................................................30
         5.1      General........................................................................................30
         5.2      Notices and Consents...........................................................................30
         5.3      Operation of Business..........................................................................31
         5.4      Preservation of Business.......................................................................31
         5.5      Full Access....................................................................................31
         5.6      Notice of Developments.........................................................................31
         5.7      Exclusivity....................................................................................31
         5.8      Plan of Merger; Reservation of Shares..........................................................31
         5.9      Press Releases.................................................................................32
         5.10     Employment Agreements..........................................................................32







ARTICLE VI
         POST-CLOSING COVENANTS..................................................................................32
         6.1      General........................................................................................32
         6.2      Litigation Support.............................................................................32
         6.3      Transition.....................................................................................32
         6.4      Confidentiality.  .............................................................................32
         6.5      Registration...................................................................................33

ARTICLE VII
         CONDITIONS PRECEDENT....................................................................................33
         7.1      Conditions Precedent -- ACL and Nova...........................................................34
         7.2      Conditions to Obligation of ACL................................................................34
         7.3      Conditions to Obligation of Nova...............................................................36

ARTICLE VIII
         REMEDIES FOR BREACHES OF THIS AGREEMENT.................................................................36
         8.1      Indemnity......................................................................................36
         8.2      Notices, Claims and Defense....................................................................37
         8.3      Defense of Third Party Claims.  ...............................................................37
         8.4      Determination of Adverse Consequences..........................................................38
         8.5      Dispute Resolution.............................................................................38
         8.6      Limitation on Indemnification..................................................................38
         8.8      Exclusive Remedy...............................................................................39

ARTICLE IX
         TERMINATION.............................................................................................39
         9.1      Termination....................................................................................39
         9.2      Effect of Termination..........................................................................40

ARTICLE X
         MISCELLANEOUS...........................................................................................40
         10.1     No Third-Party Beneficiaries...................................................................40
         10.2     Expenses.......................................................................................40
         10.3     Entire Agreement...............................................................................40
         10.4     Succession and Assignment......................................................................41
         10.5     Counterparts...................................................................................41
         10.6     Headings.......................................................................................41
         10.7     Notices........................................................................................41
         10.8     Governing Law..................................................................................42
         10.9     Amendments and Waivers.........................................................................42
         10.10             Incorporation of Exhibits and Schedules...............................................42
         10.11             Submission to Jurisdiction............................................................42








                          AGREEMENT AND PLAN OF MERGER

         AGREEMENT AND PLAN OF MERGER ("Merger Agreement" or "Agreement"), dated
as of May 6, 1997, between and among NOVAVISION, INC. ("Nova"), a North Carolina
corporation having its principal office at Raleigh, North Carolina, AMERICAN
CONSOLIDATED LABORATORIES, INC. ("ACL"), a Florida corporation having its
principal office at Raleigh, North Carolina, and NV Acquisition, Inc. ("NVA"), a
North Carolina corporation, which is a subsidiary of ACL.

         The parties desire that ACL shall acquire Nova through a merger of Nova
into NVA, in exchange for ACL common and preferred stock, and the parties desire
to provide for certain undertakings, conditions, representations, warranties and
covenants in connection with the transactions contemplated hereby.

         NOW, THEREFORE, in consideration of the premises and of the mutual
representations, warranties, covenants and agreements herein contained, and
intending to be legally bound, the parties agree as follows:

                                    ARTICLE I
                                   DEFINITIONS

         "ACL Common Stock" means the shares of common stock, par value $0.05
per share, of ACL.

         "ACL Series A Preferred Stock" means the Series A Preferred Stock,
without par value, of ACL, having a 10% dividend rate and with rights otherwise
equivalent to Nova Series A Preferred Stock, to be issued by ACL pursuant to
this Agreement.

         "ACL Stock" means ACL Common Stock, ACL Series A Preferred Stock and
ACL Series B Preferred Stock.

         "Adverse Consequences" means all actions, suits, proceedings, hearings,
investigations, charges, complaints, claims, demands, injunctions, judgments,
orders, decrees, rulings, damages, dues, penalties, fines, costs, amounts paid
in settlement, Liabilities, obligations, Taxes, liens, losses, expenses, and
fees, including all costs and expenses of litigation, and reasonable attorneys'
fees.

         "Closing Date" means the date specified pursuant to Section 2.2 as the
date on which the parties hereto shall close the transactions contemplated
herein.

         "Code" means the Internal Revenue Code of 1986, as amended.

         "Commission" means the Securities and Exchange Commission.

                                        1






         "Disclosure Schedule" means the ACL Disclosure Schedule and the Nova
Disclosure Schedule required to be delivered on the date hereof and initialed by
the Parties, pursuant to Articles III and IV. Nothing in any Disclosure Schedule
shall be deemed adequate to disclose an exception to a representation or
warranty made herein, however, unless the Disclosure Schedule identifies the
exception with reasonable particularity and describes the relevant facts in
reasonable detail. Without limiting the generality of the foregoing, the mere
listing (or inclusion of a copy) of a document or other item shall not be deemed
adequate to disclose an exception to a representation or warranty made herein
(unless the representation or warranty has to do with the existence of the
document or other item itself). The Disclosure Schedule will be arranged in
paragraphs corresponding to the lettered and numbered paragraphs contained in
the corresponding Article of the Agreement.

         "Employee Benefit Plan" means any (a) nonqualified deferred
compensation or retirement plan or arrangement which is an Employee Pension
Benefit Plan, (b) qualified defined contribution retirement plan or arrangement
which is an Employee Pension Benefit Plan, (c) qualified defined benefit
retirement plan or arrangement which is an Employee Pension Benefit Plan
(including any Multiemployeer Plan), or (d) Employee Welfare Benefit Plan or
material fringe benefit plan or program.

         "Employee Welfare Benefit Plan" has the meaning set forth in ERISA
ss.3(1).

         "Environmental Laws" has the meaning attributed to it in Section 3.21.

         "ERISA" means the Employee Retirement Income Security Act of 1974, as
amended.

         "Exchange Act" means the Securities Exchange Act of 1934, as amended.

         "Financial Statements" means:

                  (a) with respect to ACL, the consolidated balance sheet
         (including related notes and schedules, if any) of ACL as of December
         31, 1996 and the related consolidated statements of income, changes in
         Shareholders' equity and cash flows (including related notes and
         schedules, if any) for the year ended December 31, 1996 as filed by ACL
         in Securities Documents, and

                  (b) with respect to Nova, (i) its unaudited balance sheets
         (including related notes and schedules, if any) as of December 31,
         1996, and the related statements of operations (including related notes
         and schedules, if any) for the year ended December 31, 1996; (ii) its
         unaudited balance sheets (including related notes and schedules, if
         any) as of December 31, 1995, and the related statements of operations
         (including related notes and schedules, if any) for each of the two
         years ended December 31, 1995; and (iii) its balance sheets (including
         related notes and schedules, if any) and

                                        2





         related statements of operations (including related notes and
         schedules, if any) with respect to period ended March 31, 1997, if any,
         as delivered to ACL.

         "GAAP" means United States generally accepted accounting principles as
in effect from time to time.

         "Intellectual Property" means (a) all inventions (whether patentable or
unpatentable and whether or not reduced to practice), all improvements thereto,
and all patents, patent applications, and patent disclosures, together with all
reissuances, continuations, continuations-in-part, revisions, extensions, and
reexaminations thereof, (b) all trademarks, service marks, trade dress, logos,
trade names, and corporate names, together with all translations, adaptations,
derivations, and combinations thereof and including all goodwill associated
therewith, and all applications, registrations, and renewals in connection
therewith, (c) all copyrightable works, all copyrights, and all applications,
registrations, and renewals in connection therewith, (d) all mask works and all
applications, registrations, and renewals in connection therewith, (e) all trade
secrets and confidential business information (including ideas, research and
development, know-how, formulas, compositions, manufacturing and production
processes and techniques, technical data, designs, drawings, specifications,
customer and supplier lists, pricing and cost information, and business and
marketing plans and proposals), (f) all computer software (including data and
related documentation), (g) all other proprietary rights, and (h) all copies and
tangible embodiments thereof (in whatever form or medium).

         "Knowledge" means actual knowledge after reasonable investigation.

         "Liability" means any liability (whether known or unknown, whether
asserted or unasserted, whether absolute or contingent, whether accrued or
unaccrued, whether liquidated or unliquidated, and whether due or to become
due), including any liability for Taxes.

         "Material Adverse Effect" means a material adverse effect on the
financial conditions, results of operations, business, or prospects of the party
as to which such term is applied.

         "Merger" means the merger of Nova with and into NVA upon the terms set
forth in Article II.

         "NCBCA" means the North Carolina Business Corporation Act, as amended.

         "Nova Common Shareholders" means the holders of Nova Common Stock.

         "Nova Common Stock" means the shares of common stock $1.00 par value,
of NovaVision, Inc.


                                        3





         "Nova Series A Preferred Stock" means the shares of Series A Redeemable
Preferred stock, $1.00 par value, of NovaVision, Inc.

         "Nova Series B Preferred Stock" means the shares of Series B
Redeemable, Convertible Preferred stock, $1.00 par value, of NovaVision, Inc.,
convertible at $4.00 per share to Nova Common Stock.

         "Nova Series A Preferred Shareholders" means the holders of Nova Series
A Preferred Stock.

         "Nova Series B Preferred Shareholders" means the holders of Nova Series
B Preferred Stock.

         "Nova Shareholder" means any holder of Nova Common Stock, Nova Series A
Preferred Stock, or Nova Series B Preferred Stock.

         . "Nova Stock" means Nova Common Stock, Nova Series A Preferred Stock
and Nova Series B Preferred Stock.

         "Nova Stock Options" means those options exercisable at $0.01 per
share, to purchase an aggregate of 412,700 shares of Nova Common Stock, granted
by Nova under the Nova Stock Option Plan adopted on June 12, 1995.

         "Nova Stock Option Holders" means the holders of Nova Stock Options.

         "Nova Stock Warrants" means those warrants to purchase an aggregate of
222,000 shares of Nova Common Stock, granted by Nova, to Sirrom, OcuTec and
William H. Burns, Jr.

         "OcuTec" means OcuTec Holdings, Inc., a North Carolina corporation
having its principal office in Raleigh, North Carolina, a Nova Shareholder.

         "OcuTec Warrants" means warrants for 200,000 shares of Nova Common
Stock exercisable at $1.00 per share, held by OcuTec.

         "Ordinary Course of Business" means the ordinary course of business
consistent with past custom and practice (including with respect to quantity and
frequency).

         . "Person" means an individual, a partnership, a corporation, an
association, a joint stock company, a trust, a joint venture, an unincorporated
organization, or a governmental entity (or any department, agency, or political
subdivision thereof).

         "Plan of Merger" has the meaning prescribed in Section 2.1.

                                        4





         "Rights" means warrants, options, rights, convertible securities and
other arrangements or commitments which obligate an entity to issue or dispose
of any of its capital stock or other ownership interests, and stock appreciation
rights, performance units and similar stock-based rights whether or not they
obligate the issuer thereof to issue stock or other securities or to pay cash.

         "Securities Act" means the Securities Act of 1933, as amended.

         "Securities Documents" means all reports, proxy statements,
registration statements and all similar documents filed, or required to be
filed, pursuant to the Securities Laws.

         "Security Interest" means any mortgage, pledge, lien, encumbrance,
charge, or other security interest, other than (a) mechanic's, materialmen's,
and similar liens, (b) liens for Taxes not yet due and payable or for Taxes that
the taxpayer is contesting in good faith through appropriate proceedings, (c)
purchase money liens and liens securing rental payments under capital lease
arrangements, and (d) other liens arising in the Ordinary Course of Business and
not incurred in connection with the borrowing of money.

         "Securities Laws" means the Securities Act, the Exchange Act, and the
rules and regulations of the Commission promulgated thereunder.

         "Sirrom" means Sirrom Investments, Inc., a Tennessee corporation having
its principal office in Nashville, Tennessee, a Nova Shareholder.

         "Subsidiary" means any corporation with respect to which a specified
Person (or Subsidiary thereof) owns a majority of the common stock or has the
power to vote or direct the voting of sufficient securities to elect a majority
of the directors, including without limitation Biopolymer Corporation, a
subsidiary of Nova.

         "Tax" means any federal, state, local, or foreign income, gross
receipts, license, payroll, employment, excise, severance, stamp, occupation,
premium, windfall profits, environmental (including taxes under Code ss.59A),
customs duties, capital stock, franchise, profits, withholding, social security
(or similar), unemployment, disability, real property, personal property, sales,
use, transfer, registration, value added, alternative or add-on minimum,
estimated, or other tax of any kind whatsoever, including any interest, penalty,
or addition thereto, whether disputed or not.

         "Tax Return" means any return, declaration, report, claim for refund,
or information return or statement relating to Taxes, including any schedule or
attachment thereto, and including any amendment thereof.

         "TD" means Tullis-Dickerson Capital Focus, LP.


                                        5





         "TD Sub Debt" means the subordinated debt of ACL to TD, the balance,
including both principal and accrued interest, of which is approximately
$2,300,000.

         Other terms used herein are defined in the preamble and elsewhere in
this Agreement.

                                   ARTICLE II
                                   THE MERGER

         2.1 The Merger. In accordance with the plan of merger attached hereto
as Exhibit 2.1 (the "Plan of Merger") and the NCBCA, at the Effective Time Nova
shall be merged with and into NVA and the separate corporate existence of Nova
shall thereupon cease. NVA shall be the surviving corporation in the Merger and
shall continue to be governed by the laws of the state of North Carolina, and
the separate corporate existence of NVA with all its rights, privileges,
immunities, powers and franchise shall continue unaffected by the Merger, except
as set forth in the Plan of Merger. The Merger shall have the effects specified
in the NCBCA.

         2.2 Conversion of Shares. The Merger, which the parties intend to
qualify as a corporate reorganization under Section 368(a)(2)(D) of the Code,
shall occur as provided in the Plan of Merger.

         2.3 Closing. The closing of the transactions contemplated by this
Agreement (the "Closing"), subject to compliance with applicable conditions to
the Closing, shall take place at the offices of Schell Bray Aycock Abel &
Livingston P.L.L.C., 1500 Renaissance Plaza, 230 North Elm Street, Greensboro,
North Carolina on May ___, 1997.

         2.4      Deliveries at Closing.  At the Closing,

                  (a) Nova will deliver to ACL the various certificates,
         instruments and documents referred to in Section 7.2 below;

                  (b) each of the Nova Shareholders will deliver to ACL stock
         certificates representing all of his or its shares of Nova Stock,
         endorsed in blank or accompanied by duly executed assignment documents;

         2.5 Effectiveness of The Merger. The Merger shall become effective as
of the time and date of the filing of the Articles of Merger with the Secretary
of State of North Carolina in accordance with the provisions of the NCBCA, or at
the time specified in the Articles of Merger, if later than the time of filing.
The Articles of Merger shall be so filed as soon as practicable after the
Closing. The date and time when the Merger shall become effective is herein
referred to as the "Effective Time" as soon as practicable following the Merger:

                  (a) ACL will deliver to Nova the various certificates,
         instruments and documents referred to in Section 7.3 below; and

                                        6





                  (b) ACL will deliver, or instruct its transfer agent to
         deliver, to each respective Nova Shareholder certificates evidencing
         the shares of ACL Stock into which such Nova Shareholder's Nova Stock
         has been converted pursuant to the Merger

         2.6 Further Assurances. If, at any time after the Closing, ACL or Nova
shall consider or be advised that any further deeds, assignments or assurances
in law or any other actions are necessary, desirable or proper to vest, perfect
or confirm of record or otherwise, in ACL the direct or indirect title to be
acquired by reason of, or as a result of, the Acquisition, ACL and Nova agree
that each of them and, in the case of ACL and Nova, their proper officers and
directors, shall and will execute and deliver all such proper deeds, assignments
and assurances in law and do all things necessary, desirable or proper to vest,
perfect or confirm title to such stock or property or rights in ACL and
otherwise to carry out the purpose of this Agreement, and that, in the case of
ACL and Nova, their proper officers and directors are fully authorized and
directed in the name of such corporations or otherwise to take any and all such
actions.

                  (a) Nova Stock Options. At the Effective Time, each option or
         other right to purchase shares of Nova Stock pursuant to the Nova Stock
         Option Plan that are outstanding at the Effective Time, whether or not
         exercisable, shall be converted into and become rights with respect to
         ACL Common Stock, and ACL shall assume each Nova Stock Option, in
         accordance with the terms of the Nova Stock Option Plan, except that
         from and after the Effective Time (i) ACL and its Board of Directors or
         compensation committee shall be substituted for Nova and any of Nova's
         Board of Directors administering such Nova Stock Option Plan, (ii) each
         Nova Stock Option assumed by ACL may be exercised solely for shares of
         ACL Common Stock, and (iii) the number of shares of ACL Common Stock
         subject to such Nova Stock Option shall be equal to the number of
         shares of Nova Common Stock subject to such Nova Stock Option
         immediately prior to the Effective Time.

                  (b) Restrictions or limitations on transfer with respect to
         Nova Common Stock awarded under the Nova Stock Option Plan shall remain
         in full force and effect with respect to shares of ACL Common Stock
         into which such restricted stock is converted pursuant to this
         Agreement

                                   ARTICLE III
                  REPRESENTATIONS AND WARRANTIES OF ACL AND NVA

         ACL and NVA represent and warrant to Nova that the statements contained
in this Article III are correct and complete as of the date of this Agreement
and will be correct and complete as of the Closing Date (as though made then and
as though the Closing date were substituted for the date of this Agreement
throughout Article III), except as set forth in the ACL Disclosure Schedule
attached hereto.


                                        7





         3.1 Organization, Qualification and Corporate Power of ACL and NVA.
Each of ACL and NVA is a corporation duly organized, validly existing, and in
good standing under the laws of the jurisdiction of its incorporation. Each of
ACL and NVA has full power and authority (including full corporate power and
authority) to execute and deliver this Agreement and to perform its obligations
hereunder. This Agreement constitutes the valid and legally binding obligation
of ACL and NVA, enforceable in accordance with its terms and conditions. Each of
ACL and NVA has all licenses, permits, and authorizations necessary to carry on
the businesses in which it is engaged and to own and use the properties owned
and used by it. Section 3.1 of the Disclosure Schedule lists the directors and
officers of ACL and NVA. ACL has delivered to Nova correct and complete copies
of the charter and bylaws of ACL (as amended to date). The minute books
(containing the records of meetings of the Shareholders, the board of directors,
and any committees of the board of directors), the stock certificate books, and
the stock record books are correct and complete. Neither ACL nor NVA is in
default under or in violation of any provision of its Articles of Incorporation
or bylaws.

         3.2 Capitalization. The entire authorized capital stock of ACL consists
of the following:

         (a) 20,000,000 shares of ACL Common Stock, $0.05 par value, of which
         3,978,081 shares are issued and outstanding as of April 22, 1997;

         (b) 5,000,000 shares of ACL Preferred Stock, no par value, of which no
         shares are issued and outstanding;

         (c) Options to purchase 1,309,844 shares of ACL Common Stock; and

         (d) warrants to purchase 1,603,670 shares of ACL Common Stock.

         All of the issued and outstanding shares of ACL Stock have been duly
authorized and are validly issued, fully paid, and nonassessable. Except as set
forth in Section 3.2 of the ACL Disclosure Schedule, there are no outstanding or
authorized options, warrants, purchase rights, subscription rights, conversion
rights, exchange rights, or other contracts or commitments that could require
ACL to issue, sell, or otherwise cause to become outstanding any of its capital
stock. There are no outstanding or authorized stock appreciation, phantom stock,
profit participation, or similar rights with respect to ACL. There are no voting
trusts, proxies, or other agreements or understandings with respect to the
voting of the capital stock of ACL.

         3.3 Noncontravention. Neither the execution and the delivery of this
Agreement, nor the consummation of the transactions contemplated hereby, will
(A) violate any constitution, statute, regulation, rule, injunction, judgment,
order, decree, ruling, charge, or other restriction of any government,
governmental agency, or court to which ACL or NVA is subject or any provision of
its charter or bylaws or (B) conflict with, result in a breach of,

                                        8





constitute a default under, result in the acceleration of, create in any party
the right to accelerate, terminate, modify, or cancel, or require any notice
under any agreement, contract, lease, license, instrument, or other arrangement
to which ACL or NVA is a party or by which it is bound or to which any of its
assets is subject.

         3.4 Financial Statements. ACL has previously delivered to Nova true and
complete copies of its Financial Statements. The Financial Statements (including
the notes thereto) have been prepared in accordance with GAAP applied on a
consistent basis throughout the periods covered thereby, present fairly the
financial condition of ACL as of such dates and the results of operations of ACL
for such periods, are correct and complete, and are consistent with the books
and records of ACL (which books and records are correct and complete); provided,
however, that the interim Financial Statements, if any, are subject to normal
year-end adjustments (which will not be material individually or in the
aggregate) and lack footnotes and other presentation items.

         3.5 Brokers' Fees. Neither ACL nor NVA has any Liability or obligation
to pay any fees or commissions to any broker, finder, or agent with respect to
the transactions contemplated by this Agreement for which any Nova Shareholder
could become liable or obligated.

         3.6 Investment. Neither ACL nor NVA is acquiring the Nova Stock with a
view to or for sale in connection with any distribution thereof within the
meaning of the Securities Act.

         3.7 Title to Assets. ACL has good and marketable title to, or a valid
leasehold interest in, the properties and assets used by it, located on its
premises, or shown on the Most Recent Balance Sheet or acquired after the date
thereof, free and clear of all Security Interests, except for inventory disposed
of in the Ordinary Course of Business since the date of the Most Recent Balance
Sheet.

         3.8 Subsidiaries. Section 3.8 of the Disclosure Schedule sets forth for
each Subsidiary of ACL (i) its name and jurisdiction of incorporation, (ii) the
number of shares of authorized capital stock of each class of its capital stock,
(iii) the number of issued and outstanding shares of each class of it capital
stock, the names of the holders thereof, and the number of shares held by each
such holder, and (iv) the number of shares of its capital stock held in
treasury. All of the issued and outstanding shares of capital stock of each
Subsidiary of ACL have been duly authorized and are validly issued, fully paid,
and nonassessable. ACL holds of record and owns beneficially all of the
outstanding shares of each Subsidiary of ACL.

         3.9 Events Subsequent to Most Recent Fiscal Year End. Since the most
recent fiscal year end, there has not been any material adverse change in the
business, financial condition, operations, results of operations, or future
prospects of ACL. Without limiting the generality of the foregoing, since that
date:


                                        9





         (a) ACL has not sold, leased, transferred, or assigned any of its
         assets, tangible or intangible, other than for a fair consideration in
         the Ordinary Course of Business;

         (b) ACL has not entered into any agreement, contract, lease, or license
         (or series of related agreements, contracts, leases, and licenses)
         either involving more than $5,000 or outside the Ordinary Course of
         Business;

         (c) no party (including ACL) has accelerated, terminated, modified, or
         canceled any agreement, contract, lease, or license (or series of
         related agreements, contracts, leases, and licenses) involving more
         than $5,000 to which ACL is a party or by which it is bound;

         (d) ACL has not imposed any Security Interest upon any of its assets,
         tangible or intangible;

         (e) ACL has not made any capital expenditure (or series of related
         capital expenditures) either involving more than $5,000 or outside the
         Ordinary Course of Business;

         (f) ACL has not made any capital investment in, any loan to, or any
         acquisition of the securities or assets of, any other Person (or series
         of related capital investments, loans, and acquisitions) either
         involving more than $5,000 or outside the Ordinary Course of Business;

         (g) ACL has not issued any note, bond, or other debt security or
         created, incurred, assumed, or guaranteed any indebtedness for borrowed
         money or capitalized lease obligation either involving more than $5,000
         singly or $25,000 in the aggregate;

         (h) ACL has not canceled, compromised, waived, or released any right or
         claim (or series of related rights and claims) either involving more
         than $5,000 or outside the Ordinary Course of Business;

         (i) ACL has not granted any license or sublicense of any rights under
         or with respect to any Intellectual Property;

         (j) there has been no change made or authorized in the charter or
         bylaws of ACL;

         (k) ACL has not declared, set aside, or paid any dividend or made any
         distribution with respect to its capital stock (whether in cash or in
         kind) or redeemed, purchased, or otherwise acquired any of its capital
         stock;

         (l) ACL has not experienced any damage, destruction, or loss (whether
         or not covered by insurance) to its property;

                                       10





         (m) ACL has not made any loan to, or entered into any other transaction
         with, any of its directors, officers, and employees outside the
         Ordinary Course of Business;

         (n) ACL has not entered into any employment contract or collective
         bargaining agreement, written or oral, or modified the terms of any
         existing such contract or agreement;

         (o) ACL has not granted any increase in the base compensation of any of
         its directors, officers, and employees outside the Ordinary Course of
         Business;

         (p) ACL has not adopted, amended, modified, or terminated any bonus,
         profit-sharing, incentive, severance, or other plan, contract, or
         commitment for the benefit of any of its directors, officers, and
         employees (or taken any such action with respect to any other Employee
         Benefit Plan);

         (q) ACL has not made any other change in employment terms for any of
         its directors, officers, and employees outside the Ordinary Course of
         Business;

         (r) ACL has not made or pledged to make any charitable or other capital
         contribution outside the Ordinary Course of Business;

         (s) there has not been any other material occurrence, event, incident,
         action, failure to act, or transaction outside the Ordinary Course of
         Business involving ACL; and

         (t)      ACL has not committed to any of the foregoing.

         3.10 Undisclosed Liabilities. ACL has no Liability (and there is no
Basis for any present or future action, suit, proceeding, hearing,
investigation, charge, complaint, claim, or demand against it giving rise to any
Liability), except for Liabilities set forth in the most recent Financial
Statements (and in the notes thereto) or the ACL Disclosure Schedule.

         3.11 Legal Compliance. ACL and its respective predecessors and
affiliates has complied with all applicable laws (including rules, regulations,
codes, plans, injunctions, judgments, orders, decrees, rulings, and charges
thereunder) of federal, state, local, and foreign governments (and all agencies
thereof), and no action, suit, proceeding, hearing, investigation, charge,
complaint, claim, demand, or notice has been filed or commenced against any of
them alleging any failure so to comply.

         3.12     Tax Matters.

         (a) ACL has filed all Tax Returns that it was required to file. All
         such Tax Returns were correct and complete in all respects. All Taxes
         owed by ACL (whether or not shown on any Tax Return) have been paid.
         ACL currently is the beneficiary of any

                                       11





         extension of time within which to file any Tax Return. No claim has
         ever been made by an authority in a jurisdiction where ACL does not
         file Tax Returns that it is or may be subject to taxation by that
         jurisdiction. There are no Security Interests on any of the assets of
         ACL that arose in connection with any failure (or alleged failure) to
         pay any Tax.

         (b) ACL has withheld and paid all Taxes required to have been withheld
         and paid in connection with amounts paid or owing to any employee,
         independent contractor, creditor, Shareholder, or other third party.

         (c) No ACL director or officer (or employee responsible for Tax
         matters) of ACL expects any authority to assess any additional Taxes
         for any period for which Tax Returns have been filed. There is no
         dispute or claim concerning any Tax Liability of ACL either (A) claimed
         or raised by any authority in writing or (B) as to which any of the ACL
         directors and officers (and employees responsible for Tax matters) has
         Knowledge based upon personal contact with any agent of such authority.
         Section 3.12 of the Disclosure Schedule lists all federal, state,
         local, and foreign income Tax Returns filed with respect to ACL for
         taxable periods ended on or after December 31, 1996, indicates those
         Tax Returns that have been audited, and indicates those Tax Returns
         that currently are the subject of audit. ACL has delivered to the Nova
         correct and complete copies of all federal income Tax Returns,
         examination reports, and statements of deficiencies assessed against or
         agreed to by ACL since December 31, 1996.

         (d) ACL has not waived any statute of limitations in respect of Taxes
         or agreed to any extension of time with respect to a Tax assessment or
         deficiency.

         (e) ACL has not filed a consent under Code ss.341(f) concerning
         collapsible corporations. ACL has not made any payments, is obligated
         to make any payments, or is a party to any agreement that under certain
         circumstances could obligate it to make any payments that will not be
         deductible under Code ss.280G. ACL has disclosed on its federal income
         Tax Returns all positions taken therein that could give rise to a
         substantial understatement of federal income Tax within the meaning of
         Code ss.6662. ACL is not a party to any Tax allocation or sharing
         agreement. ACL (A) has not been a member of an Affiliated Group filing
         a consolidated federal income Tax Return (other than a group the common
         parent of which was ACL) or (B) has any Liability for the Taxes of any
         Person (other than ACL) under Reg. ss.1.1502-6 (or any similar
         provision of state, local, or foreign law), as a transferee or
         successor, by contract, or otherwise.

         (f) Section 3.12 of the Disclosure Schedule sets forth the following
         information with respect to ACL as of the most recent practicable date:
         (A) the basis of ACL in its assets; and (B) the amount of any net
         operating loss, net capital loss, unused investment or other credit,
         unused foreign tax, or excess charitable contribution allocable to ACL.

                                       12





         (g) The unpaid Taxes of ACL (A) did not, as of the most recent fiscal
         month end, exceed the reserve for Tax Liability (rather than any
         reserve for deferred Taxes established to reflect timing differences
         between book and Tax income) set forth on the face of the most recent
         balance sheet (rather than in any notes thereto) and (B) do not exceed
         that reserve as adjusted for the passage of time through the Closing
         Date in accordance with the past custom and practice of ACL in filing
         its Tax Returns.

         3.13     Real Property.

         (a)      ACL owns no real property.

         (b) Section 3.13(b) of the ACL Disclosure Schedule includes correct and
         complete copies of all of ACL's leases. With respect to each such
         lease, the lease is legal, valid, binding, enforceable, and in full
         force and effect.

         3.14     Intellectual Property.

         (a) ACL owns or has the right to use pursuant to license, sublicense,
         agreement, or permission all Intellectual Property necessary or
         desirable for the operation of the businesses of ACL as presently
         conducted and as presently proposed to be conducted. Each item of
         Intellectual Property owned or used by ACL immediately prior to the
         Closing hereunder will be owned or available for use by ACL on
         identical terms and conditions immediately subsequent to the Closing
         hereunder. ACL has taken all necessary and desirable action to maintain
         and protect each item of Intellectual Property that it owns or uses.

         (b) ACL has not interfered with, infringed upon, misappropriated, or
         otherwise come into conflict with any Intellectual Property rights of
         third parties, and none of the directors and officers (and employees
         with responsibility for Intellectual Property matters) of ACL has ever
         received any charge, complaint, claim, demand, or notice alleging any
         such interference, infringement, misappropriation, or violation
         (including any claim that ACL must license or refrain from using any
         Intellectual Property rights of any third party). To the Knowledge of
         ACL (and employees with responsibility for Intellectual Property
         matters) of ACL, no third party has interfered with, infringed upon,
         misappropriated, or otherwise come into conflict with any Intellectual
         Property rights of ACL.

         (c) Section 3.14(c) of the Disclosure Schedule identifies all
         Intellectual Property owned by ACL, including each patent or
         registration which has been issued to ACL with respect to any of its
         Intellectual Property, each pending patent application or application
         for registration which ACL has made with respect to any of its
         Intellectual Property, and each license, agreement, or other permission
         which ACL has granted to any third party with respect to any of its
         Intellectual Property (together with any

                                       13





         exceptions). ACL has delivered to Nova correct and complete copies of
         all such patents, registrations, applications, licenses, agreements,
         and permissions (as amended to date) and have made available to Nova
         correct and complete copies of all other written documentation
         evidencing ownership and prosecution (if applicable) of each such item.
         Section 3.14(c) of the Disclosure Schedule also identifies each trade
         name or unregistered trademark used by ACL in connection with any of
         its businesses. With respect to each item of Intellectual Property
         required to be identified in Section 3.14(c) of the Disclosure
         Schedule:

                  (i) ACL possesses all right, title, and interest in and to the
                  item, free and clear of any Security Interest, license, or
                  other restriction;

                  (ii) the item is not subject to any outstanding injunction,
                  judgment, order, decree, ruling, or charge;

                  (iii) no action, suit, proceeding, hearing, investigation,
                  charge, complaint, claim, or demand is pending or, to the
                  Knowledge of ACL directors and officers (and employees with
                  responsibility for Intellectual Property matters) is
                  threatened which challenges the legality, validity,
                  enforceability, use, or ownership of the item; and

                  (iv) ACL has never agreed to indemnify any Person for or
                  against any interference, infringement, misappropriation, or
                  other conflict with respect to the item.

         (d) Section 3.14(d) of the Disclosure Schedule identifies each item of
         Intellectual Property that any third party owns and that ACL uses
         pursuant to license, sublicense, agreement, or permission. ACL has
         delivered to Nova correct and complete copies of all such licenses,
         sublicenses, agreements, and permissions (as amended to date). With
         respect to each item of Intellectual Property required to be identified
         in Section 3.14(d) of the Disclosure Schedule:

                  (i) the license, sublicense, agreement, or permission covering
                  the item is legal, valid, binding, enforceable, and in full
                  force and effect;

                  (ii) the license, sublicense, agreement, or permission will
                  continue to be legal, valid, binding, enforceable, and in full
                  force and effect on identical terms following the consummation
                  of the transactions contemplated hereby

                  (iii) no party to the license, sublicense, agreement, or
                  permission is in breach or default, and no event has occurred
                  which with notice or lapse of time would constitute a breach
                  or default or permit termination, modification, or
                  acceleration thereunder;

                                       14





                  (iv) no party to the license, sublicense, agreement, or
                  permission has repudiated any provision thereof;

                  (v) with respect to each sublicense, the representations and
                  warranties set forth in subsections (i) through (iv) above are
                  true and correct with respect to the underlying license;

                  (vi) the underlying item of Intellectual Property is not
                  subject to any outstanding injunction, judgment, order,
                  decree, ruling, or charge;

                  (vii) no action, suit, proceeding, hearing, investigation,
                  charge, complaint, claim, or demand is pending or, to the
                  Knowledge of ACL and the directors and officers (and employees
                  with responsibility for Intellectual Property matters) of ACL,
                  is threatened which challenges the legality, validity, or
                  enforceability of the underlying item of Intellectual
                  Property; and

                  (viii) ACL has not granted any sublicense or similar right
                  with respect to the license, sublicense, agreement, or
                  permission.

         (e) To the Knowledge of ACL and the directors and officers (and
employees with responsibility for Intellectual Property matters) of ACL, ACL
will not interfere with, infringe upon, misappropriate, or otherwise come into
conflict with, any Intellectual Property rights of third parties as a result of
the continued operation of its businesses as presently conducted and as
presently proposed to be conducted.

         (f) Neither ACL nor the directors and officers (and employees with
responsibility for Intellectual Property matters) of ACL has any Knowledge of
any new products, inventions, procedures, or methods of manufacturing or
processing that any competitors or other third parties have developed which
reasonably could be expected to supersede or make obsolete any product or
process of ACL.

         3.15 Tangible Assets. ACL owns or leases all buildings, machinery,
equipment, and other tangible assets necessary for the conduct of its business
as presently conducted. Each such tangible asset is free from defects (patent
and latent), has been maintained in accordance with normal industry practice, is
in good operating condition and repair (subject to normal wear and tear), and is
suitable for the purposes for which it presently is used.

         3.16 Inventory. The inventory of ACL consists of raw materials and
supplies, manufactured and purchased parts, goods in process, and finished
goods, all of which is merchantable and fit for the purpose for which it was
procured or manufactured, and none of which is slow-moving, obsolete, damaged,
or defective, subject only to the reserve for inventory writedown set forth in
the Most Recent Financial Statements (or in the notes thereto)

                                       15





as adjusted for the passage of time through the Closing Date in accordance with
the past custom and practice of ACL.

         3.17 Contracts. Section 3.17 of the ACL Disclosure Schedule lists all
contracts, commitments, agreements (including agreements for the borrowing of
money or the extension of credit), leases (other than real property leases),
understandings and obligations, whether written or oral, to which ACL is a party
or by which ACL is bound or affected, other than obligations to pay monthly
amounts of $1,000.00 or less ("Contracts"). ACL has delivered to Nova true and
complete copies of all written Contracts and true and complete memoranda of all
oral Contracts, including any and all amendments and other modifications
thereto. Each of the Contracts is valid, binding and enforceable in accordance
with its terms and is in full force and effect. No purchase commitments are in
excess of the requirements of the Ordinary Course of Business of ACL. There are
no existing defaults by ACL, and no events or circumstances have occurred which,
with or without notice or lapse of time or both, would constitute defaults by
ACL under any of the Contracts. The consummation of the transactions
contemplated by this Agreement will not, with respect to any Contract, (i)
constitute a default thereunder, (ii) require the consent of any person or
party, or (iii) affect the continuation, validity and effectiveness thereof or
the terms thereof.

         3.18 Notes and Accounts Receivable. All notes and accounts receivable
of ACL are reflected properly on their books and records, are valid receivables
subject to no setoffs or counterclaims, are current and collectible in
accordance with the terms thereof, and will be collected in accordance with
their terms at their recorded amounts, subject only to the reserve for bad debts
set forth on the face of the most recent Financial Statement (or in the notes
thereto) as adjusted for the passage of time through the Closing date in
accordance with the past custom and practice of ACL.

         3.19 Liabilities. Section 3.19 of the Disclosure Schedule contains a
true and complete list of all Liabilities of ACL, including without limitation
all accounts payable, obligations to furnish goods or services or to pay for
goods or services to be delivered, Taxes, and other accrued expenses of whatever
kind, whether or not shown on the Financial Statements.

         3.20 Powers of Attorney. There are no outstanding powers of attorney
executed on behalf of any of ACL.

         3.21 Insurance. Section 3.21 of the Disclosure Schedule describes all
insurance policies maintained by ACL with respect to its business. Such policies
are valid, binding and enforceable in accordance with their terms, are in full
force and effect, and all premiums due thereon have been paid and will be paid
through the Closing date. To the best of the Knowledge of ACL, such policies
provide adequate coverage for all risks customarily insured against by companies
engaging in a business similar to the business of ACL. Except as shown

                                       16





on Section 3.21 of the Disclosure Schedule, ACL has not been refused any
insurance by any insurance carrier during the past two years.

         3.22 Litigation. Section 3.22 of the Disclosure Schedule sets forth
each instance in which ACL (i) is subject to any outstanding injunction,
judgment, order, decree, ruling, or charge or (ii) is a party or, to the
Knowledge of ACL and the directors and officers (and employees with
responsibility for litigation matters) of ACL, is threatened to be made a party
to any action, suit, proceeding, hearing, or investigation of, in, or before any
court or quasi-judicial or administrative agency of any federal, state, local,
or foreign jurisdiction or before any arbitrator. None of the actions, suits,
proceedings, hearings, and investigations set forth in Section 3.22 of the
Disclosure Schedule could result in any material adverse change in the business,
financial condition, operations, results of operations, or future prospects of
ACL. ACL (and employees with responsibility for litigation matters) ACL has no
reason to believe that any such action, suit, proceeding, hearing, or
investigation may be brought or threatened against ACL.

         3.23 Product Warranty. Each product manufactured, sold, leased, or
delivered by ACL has been in conformity with all applicable contractual
commitments and all express and implied warranties, and ACL has no Liability
(and there is no Basis for any present or future action, suit, proceeding,
hearing, investigation, charge, complaint, claim, or demand against any of them
giving rise to any Liability) for replacement or repair thereof or other damages
in connection therewith, subject only to the reserve for product warranty claims
set forth on the face of the Most Recent Balance Sheet (rather than in any notes
thereto) as adjusted for the passage of time through the Closing Date in
accordance with the past custom and practice of ACL. No product manufactured,
sold, leased, or delivered by ACL is subject to any guaranty, warranty, or other
indemnity beyond the applicable standard terms and conditions of sale or lease.
Section 3.23 of the Disclosure Schedule includes copies of the standard terms
and conditions of sale or lease for ACL (containing applicable guaranty,
warranty, and indemnity provisions).

         3.24 Product Liability. ACL has no Liability (and there is no Basis for
any present or future action, suit, proceeding, hearing, investigation, charge,
complaint, claim, or demand against any of them giving rise to any Liability)
arising out of any injury to individuals or property as a result of the
ownership, possession, or use of any product manufactured, sold, leased, or
delivered by ACL.

         3.25 Employees. To the Knowledge of ACL, no executive, key employee, or
group of employees has any plans to terminate employment with ACL. ACL is not a
party to or bound by any collective bargaining agreement, nor has it experienced
any strikes, grievances, claims of unfair labor practices, or other collective
bargaining disputes. ACL has not committed any unfair labor practice.


                                       17





         3.26     Employee Benefits.

                  (a) ACL does not now maintain and has not ever maintained an
                  Employee Benefit Plan.

                  (b) ACL does not contribute to, never has contributed to and
                  never has been required to contribute to any Multiemployer
                  Plan or has any Liability (including withdrawal Liability)
                  under any Multiemployer Plan.

                  (c) Section 3.26 of the Disclosure Schedule lists each
                  Employee Welfare Benefit Plan maintained or sponsored
                  providing medical, health, or life insurance or other
                  welfare-type benefits for current or future retired or
                  terminated employees, their spouses, or their dependents
                  (other than in accordance with Code ss.4980B). All such plans
                  are in full compliance with ERISA.

         3.27 Guaranties. ACL is not a guarantor or otherwise is liable for any
Liability or obligation (including indebtedness) of any other Person.

         3.28 Environmental Protection. The existing and prior uses of the
assets of ACL comply with, and at all times have complied with, and ACL is not
in violation of and has not violated, in connection with the ownership, use,
maintenance or operation of its assets, any Environmental Laws. For purposes
hereof, "Environmental Laws" means any applicable federal, state, county or
local statutes, laws, regulations, rules, ordinances, codes, licenses or permits
of any governmental authorities relating to environmental matters, including by
way of illustration and not by way of limitation the Comprehensive Environmental
Response, Compensation and Liability Act as amended, the Resource Conservation
Recovery Act as amended, the Clean Air Act, the Toxic Substances Control Act,
any "Superfund" or "Superlien" law, or any other federal, state or local
statute, law, ordinance, code, rule, regulation, order, decree or guideline
(whether published or unpublished) regulating, relating to or imposing liability
or standards of conduct concerning any petroleum, petroleum by- product
(including but not limited to crude oil, diesel oil, fuel oil, gasoline,
lubrication oil, oil refuse, oil hydrocarbons, regardless of specific gravity),
natural or synthetic gas, hazardous substance or materials, toxic or dangerous
waste, substance or material, pollutant or contaminant.

         3.29 Disclosure. The representations and warranties contained in this
Article III do not contain any untrue statement of a material fact or omit to
state any material fact necessary in order to make the statements and
information contained in this Article III not misleading.



                                       18





                                   ARTICLE IV
                         REPRESENTATIONS AND WARRANTIES
                       CONCERNING NOVA AND ITS SUBSIDIARY

         Nova represents and warrants to ACL and NVA that the statements
contained in this Article IV with respect to Nova and its Subsidiary are correct
and complete as of the date of this Agreement and will be correct and complete
as of the Closing date (as though made then and as though the Closing date were
substituted for the date of this Agreement throughout this Article IV), except
as set forth in the Nova Disclosure Schedule attached hereto.

         4.1 Organization, Qualification, and Corporate Power. Nova is a
corporation duly organized, validly existing, and in good standing under the
NCBCA. Nova is not authorized to conduct business under the laws of any
jurisdiction other than North Carolina, which is the only jurisdiction where
such qualification is required. Nova has full corporate power and authority to
execute and deliver this Agreement and to perform its obligations hereunder.
This Agreement constitutes the valid and legally binding obligation of Nova,
enforceable in accordance with its terms. Nova has all licenses, permits, and
authorizations necessary to carry on the businesses in which it is engaged and
to own and use the properties owned and used by it. Section 4.1 of the
Disclosure Schedule lists the directors and officers of Nova. Nova has delivered
to ACL correct and complete copies of the charter and bylaws of Nova (as amended
to date). The minute books (containing the records of meetings of the
Shareholders, the board of directors, and any committees of the board of
directors), the stock certificate books, and the stock record books of Nova are
correct and complete. Nova is not in default under or in violation of any
provision of its Articles of Incorporation or bylaws.

         4.2 Capitalization. The entire authorized capital stock of Nova
consists of the following:

                  (a) 5,000,000 shares of Nova Common Stock, $1.00 par value, of
         which 3,561,906 shares are issued and outstanding;

                  (b) 5,000,000 shares of Nova Series A Preferred Stock, $1.00
         par value, of which 2,808,175 shares are issued and outstanding as of
         March 31, 1997;

                  (c) 5,000,000 shares of Nova Series B Preferred Stock, $1.00
         par value, of which no shares are issued and outstanding;

                  (d) options to acquire 412,700 shares of Nova Common Stock;
         and

                  (e) warrants to acquire 222,000 shares of Nova Common Stock.

         All of the issued and outstanding shares of Nova Stock have been duly
authorized, are validly issued, fully paid, and nonassessable, and are held of
record by the respective Nova

                                       19





Shareholders as set forth in Section 4.2 of the Disclosure Schedule. Except as
set forth in Section 4.2 of the Disclosure Schedule, there are no outstanding or
authorized options, warrants, purchase rights, subscription rights, conversion
rights, exchange rights, or other contracts or commitments that could require
Nova to issue, sell, or otherwise cause to become outstanding any of its capital
stock. There are no outstanding or authorized stock appreciation, phantom stock,
profit participation, or similar rights with respect to Nova. There are no
voting trusts, proxies, or other agreements or understandings with respect to
the voting of the capital stock of Nova.

         4.3 Noncontravention. Neither the execution and the delivery of this
Agreement, nor the consummation of the transactions contemplated hereby, will
(i) violate any constitution, statute, regulation, rule, injunction, judgment,
order, decree, ruling, charge, or other restriction of any government,
governmental agency, or court to which Nova is subject or any provision of the
Articles of Incorporation or bylaws of Nova or (ii) conflict with, result in a
breach of, constitute a default under, result in the acceleration of, create in
any party the right to accelerate, terminate, modify, or cancel, or require any
notice under any agreement, contract, lease, license, instrument, or other
arrangement to which Nova is a party or by which it is bound or to which any of
its assets is subject (or result in the imposition of any Security Interest upon
any of its assets). Nova need not to give any notice to, make any filing with,
or obtain any authorization, consent, or approval of any government or
governmental agency in order for the Parties to consummate the transactions
contemplated by this Agreement.

         4.4 Brokers' Fees. Nova has no Liability or obligation to pay any fees
or commissions to any broker, finder, or agent with respect to the transactions
contemplated by this Agreement.

         4.5 Title to Assets. Nova has good and marketable title to, or a valid
leasehold interest in, the properties and assets used by it, located on its
premises, or shown on the Most Recent Balance Sheet or acquired after the date
thereof, free and clear of all Security Interests, except for inventory disposed
of in the Ordinary Course of Business since the date of the Most Recent Balance
Sheet.

         4.6 Subsidiaries. Section 4.6 of the Disclosure Schedule sets forth for
each Subsidiary of Nova (i) its name and jurisdiction of incorporation, (ii) the
number of shares of authorized capital stock of each class of its capital stock,
(iii) the number of issued and outstanding shares of each class of it capital
stock, the names of the holders thereof, and the number of shares held by each
such holder, and (iv) the number of shares of its capital stock held in
treasury. All of the issued and outstanding shares of capital stock of each
Subsidiary of Nova have been duly authorized and are validly issued, fully paid,
and nonassessable. Nova holds of record and owns beneficially all of the
outstanding shares of each Subsidiary of Nova.


                                       20





         4.7 Financial Statements. Nova has previously delivered to ACL true and
complete copies of its Financial Statements. The Financial Statements (including
the notes thereto) have been prepared in accordance with GAAP applied on a
consistent basis throughout the periods covered thereby, present fairly the
financial condition of Nova as of such dates and the results of operations of
Nova for such periods, are correct and complete, and are consistent with the
books and records of Nova (which books and records are correct and complete);
provided, however, that the interim Financial Statements, if any, are subject to
normal year-end adjustments (which will not be material individually or in the
aggregate) and lack footnotes and other presentation items.

         4.8 Events Subsequent to Most Recent Fiscal Year End. Since the most
recent fiscal year end, there has not been any material adverse change in the
business, financial condition, operations, results of operations, or future
prospects of Nova. Without limiting the generality of the foregoing, since that
date:

                  (a) Nova has not sold, leased, transferred, or assigned any of
         its assets, tangible or intangible, other than for a fair consideration
         in the Ordinary Course of Business;

                  (b) Nova has not entered into any agreement, contract, lease,
         or license (or series of related agreements, contracts, leases, and
         licenses) either involving more than $5,000 or outside the Ordinary
         Course of Business;

                  (c) no party (including Nova) has accelerated, terminated,
         modified, or canceled any agreement, contract, lease, or license (or
         series of related agreements, contracts, leases, and licenses)
         involving more than $5,000 to which Nova is a party or by which it is
         bound;

                  (d) Nova has not imposed any Security Interest upon any of its
         assets, tangible or intangible;

                  (e) Nova has not made any capital expenditure (or series of
         related capital expenditures) either involving more than $5,000 or
         outside the Ordinary Course of Business;

                  (f) Nova has not made any capital investment in, any loan to,
         or any acquisition of the securities or assets of, any other Person (or
         series of related capital investments, loans, and acquisitions) either
         involving more than $5,000 or outside the Ordinary Course of Business;

                  (g) Nova has not issued any note, bond, or other debt security
         or created, incurred, assumed, or guaranteed any indebtedness for
         borrowed money or capitalized lease obligation either involving more
         than $5,000 singly or $25,000 in the aggregate;

                                       21





                  (h) Nova has not cancelled, compromised, waived, or released
         any right or claim (or series of related rights and claims) either
         involving more than $5,000 or outside the Ordinary Course of Business;

                  (i) Nova has not granted any license or sublicense of any
         rights under or with respect to any Intellectual Property;

                  (j) there has been no change made or authorized in the charter
         or bylaws of Nova;

                  (k) Nova has not issued, sold, or otherwise disposed of any of
         its capital stock, or granted any options, warrants, or other rights to
         purchase or obtain (including upon conversion, exchange, or exercise)
         any of its capital stock;

                  (l) Nova has not declared, set aside, or paid any dividend or
         made any distribution with respect to its capital stock (whether in
         cash or in kind) or redeemed, purchased, or otherwise acquired any of
         its capital stock;

                  (m) Nova has not experienced any damage, destruction, or loss
         (whether or not covered by insurance) to its property;

                  (n) Nova has not made any loan to, or entered into any other
         transaction with, any of its directors, officers, and employees outside
         the Ordinary Course of Business;

                  (o) Nova has not entered into any employment contract or
         collective bargaining agreement, written or oral, or modified the terms
         of any existing such contract or agreement;

                  (p) Nova has not granted any increase in the base compensation
         of any of its directors, officers, and employees outside the Ordinary
         Course of Business;

                  (q) Nova has not adopted, amended, modified, or terminated any
         bonus, profit-sharing, incentive, severance, or other plan, contract,
         or commitment for the benefit of any of its directors, officers, and
         employees (or taken any such action with respect to any other Employee
         Benefit Plan);

                  (r) Nova has not made any other change in employment terms for
         any of its directors, officers, and employees outside the Ordinary
         Course of Business;

                  (s) Nova has not made or pledged to make any charitable or
         other capital contribution outside the Ordinary Course of Business;


                                       22





                  (t) there has not been any other material occurrence, event,
         incident, action, failure to act, or transaction outside the Ordinary
         Course of Business involving Nova; and

                  (u)      Nova has not committed to any of the foregoing.

         4.9 Undisclosed Liabilities. Nova has no Liability (and there is no
Basis for any present or future action, suit, proceeding, hearing,
investigation, charge, complaint, claim, or demand against it giving rise to any
Liability), except for Liabilities set forth on the face of the most recent
Balance Sheet (rather than in any notes thereto).

         4.10 Legal Compliance. Nova and its respective predecessors and
affiliates has complied with all applicable laws (including rules, regulations,
codes, plans, injunctions, judgments, orders, decrees, rulings, and charges
thereunder) of federal, state, local, and foreign governments (and all agencies
thereof), and no action, suit, proceeding, hearing, investigation, charge,
complaint, claim, demand, or notice has been filed or commenced against any of
them alleging any failure so to comply.

         4.11     Tax Matters.

                  (a) Nova has filed all Tax Returns that it was required to
         file. All such Tax Returns were correct and complete in all respects.
         All Taxes owed by Nova (whether or not shown on any Tax Return) have
         been paid. Nova currently is the beneficiary of any extension of time
         within which to file any Tax Return. No claim has ever been made by an
         authority in a jurisdiction where Nova does not file Tax Returns that
         it is or may be subject to taxation by that jurisdiction. There are no
         Security Interests on any of the assets of Nova that arose in
         connection with any failure (or alleged failure) to pay any Tax.

                  (b) Nova has withheld and paid all Taxes required to have been
         withheld and paid in connection with amounts paid or owing to any
         employee, independent contractor, creditor, Shareholder, or other third
         party.

                  (c) No Nova Shareholder or director or officer (or employee
         responsible for Tax matters) of Nova expects any authority to assess
         any additional Taxes for any period for which Tax Returns have been
         filed. There is no dispute or claim concerning any Tax Liability of
         Nova either (A) claimed or raised by any authority in writing or (B) as
         to which any of the Nova Shareholders and the directors and officers
         (and employees responsible for Tax matters) of Nova has Knowledge based
         upon personal contact with any agent of such authority. Section 4.11 of
         the Disclosure Schedule lists all federal, state, local, and foreign
         income Tax Returns filed with respect to Nova for taxable periods ended
         on or after December 31, 1996, indicates those Tax Returns that have
         been audited, and indicates those Tax Returns that currently are the
         subject of

                                       23





         audit. The Nova Shareholders have delivered to the ACL correct and
         complete copies of all federal income Tax Returns, examination reports,
         and statements of deficiencies assessed against or agreed to by Nova
         since December 31, 1996.

                  (d) Nova has not waived any statute of limitations in respect
         of Taxes or agreed to any extension of time with respect to a Tax
         assessment or deficiency.

                  (e) Nova has not filed a consent under Code ss.341(f)
         concerning collapsible corporations. Nova has not made any payments, is
         obligated to make any payments, or is a party to any agreement that
         under certain circumstances could obligate it to make any payments that
         will not be deductible under Code ss.280G. Nova has disclosed on its
         federal income Tax Returns all positions taken therein that could give
         rise to a substantial understatement of federal income Tax within the
         meaning of Code ss.6662. Nova is not a party to any Tax allocation or
         sharing agreement. Nova (A) has not been a member of an Affiliated
         Group filing a consolidated federal income Tax Return (other than a
         group the common parent of which was Nova) or (B) has any Liability for
         the Taxes of any Person (other than Nova) under Reg. ss.1.1502-6 (or
         any similar provision of state, local, or foreign law), as a transferee
         or successor, by contract, or otherwise.

                  (f) Section 4.11 of the Disclosure Schedule sets forth the
         following information with respect to Nova as of the most recent
         practicable date: (A) the basis of Nova in its assets; and (B) the
         amount of any net operating loss, net capital loss, unused investment
         or other credit, unused foreign tax, or excess charitable contribution
         allocable to Nova.

                  (g) The unpaid Taxes of Nova (A) did not, as of the most
         recent fiscal month end, exceed the reserve for Tax Liability (rather
         than any reserve for deferred Taxes established to reflect timing
         differences between book and Tax income) set forth on the face of the
         most recent balance sheet (rather than in any notes thereto) and (B) do
         not exceed that reserve as adjusted for the passage of time through the
         Closing Date in accordance with the past custom and practice of Nova in
         filing its Tax Returns.

         4.12     Real Property.

                  (a)      Nova owns no real property.

                  (b) Nova has one lease which expires on August 31, 1997. Nova
         has delivered to ACL a correct and complete copy of the lease. With
         respect to such lease, the lease is legal, valid, binding, enforceable,
         and in full force and effect.


                                       24





         4.13     Intellectual Property.

                  (a) Nova owns or has the right to use pursuant to license,
         sublicense, agreement, or permission all Intellectual Property
         necessary or desirable for the operation of the businesses of Nova as
         presently conducted and as presently proposed to be conducted. Each
         item of Intellectual Property owned or used by Nova immediately prior
         to the Closing hereunder will be owned or available for use by Nova on
         identical terms and conditions immediately subsequent to the Closing
         hereunder. Nova has taken all necessary and desirable action to
         maintain and protect each item of Intellectual Property that it owns or
         uses.

                  (b) Nova has not interfered with, infringed upon,
         misappropriated, or otherwise come into conflict with any Intellectual
         Property rights of third parties, and none of the Nova Shareholders and
         the directors and officers (and employees with responsibility for
         Intellectual Property matters) of Nova has ever received any charge,
         complaint, claim, demand, or notice alleging any such interference,
         infringement, misappropriation, or violation (including any claim that
         Nova must license or refrain from using any Intellectual Property
         rights of any third party). To the Knowledge of any of the Nova
         Shareholders and the directors and officers (and employees with
         responsibility for Intellectual Property matters) of Nova, no third
         party has interfered with, infringed upon, misappropriated, or
         otherwise come into conflict with any Intellectual Property rights of
         Nova.

                  (c) Section 4.13(c) of the Disclosure Schedule identifies all
         Intellectual Property owned by Nova, including each patent or
         registration which has been issued to Nova with respect to any of its
         Intellectual Property, each pending patent application or application
         for registration which Nova has made with respect to any of its
         Intellectual Property, and each license, agreement, or other permission
         which Nova has granted to any third party with respect to any of its
         Intellectual Property (together with any exceptions). Nova has
         delivered to ACL correct and complete copies of all such patents,
         registrations, applications, licenses, agreements, and permissions (as
         amended to date) and have made available to ACL correct and complete
         copies of all other written documentation evidencing ownership and
         prosecution (if applicable) of each such item. Section 4.13(c) of the
         Disclosure Schedule also identifies each trade name or unregistered
         trademark used by Nova in connection with any of its businesses. With
         respect to each item of Intellectual Property required to be identified
         in Section 4.13(c) of the Disclosure Schedule:

                           (i) Nova possesses all right, title, and interest in
                  and to the item, free and clear of any Security Interest,
                  license, or other restriction;

                           (ii) the item is not subject to any outstanding
                  injunction, judgment, order, decree, ruling, or charge;

                                       25





                           (iii) no action, suit, proceeding, hearing,
                  investigation, charge, complaint, claim, or demand is pending
                  or, to the Knowledge of any of the Nova Shareholders and the
                  directors and officers (and employees with responsibility for
                  Intellectual Property matters) of Nova, is threatened which
                  challenges the legality, validity, enforceability, use, or
                  ownership of the item; and

                           (iv) Nova has never agreed to indemnify any Person
                  for or against any interference, infringement,
                  misappropriation, or other conflict with respect to the item.

                  (d) Section 4.13(d) of the Disclosure Schedule identifies each
         item of Intellectual Property that any third party owns and that Nova
         uses pursuant to license, sublicense, agreement, or permission. Nova
         has delivered to ACL correct and complete copies of all such licenses,
         sublicenses, agreements, and permissions (as amended to date). With
         respect to each item of Intellectual Property required to be identified
         in Section 4.13(d) of the Disclosure Schedule:

                           (i) the license, sublicense, agreement, or permission
                  covering the item is legal, valid, binding, enforceable, and
                  in full force and effect;

                           (ii) the license, sublicense, agreement, or
                  permission will continue to be legal, valid, binding,
                  enforceable, and in full force and effect on identical terms
                  following the consummation of the transactions contemplated
                  hereby

                           (iii) no party to the license, sublicense, agreement,
                  or permission is in breach or default, and no event has
                  occurred which with notice or lapse of time would constitute a
                  breach or default or permit termination, modification, or
                  acceleration thereunder;

                           (iv) no party to the license, sublicense, agreement,
                  or permission has repudiated any provision thereof;

                           (v) with respect to each sublicense, the
                  representations and warranties set forth in subsections (i)
                  through (iv) above are true and correct with respect to the
                  underlying license;

                           (vi) the underlying item of Intellectual Property is
                  not subject to any outstanding injunction, judgment, order,
                  decree, ruling, or charge;

                           (vii) no action, suit, proceeding, hearing,
                  investigation, charge, complaint, claim, or demand is pending
                  or, to the Knowledge of any of Nova Shareholders and the
                  directors and officers (and employees with responsibility

                                       26





                  for Intellectual Property matters) of Nova, is threatened
                  which challenges the legality, validity, or enforceability of
                  the underlying item of Intellectual Property; and

                           (viii) Nova has not granted any sublicense or similar
                  right with respect to the license, sublicense, agreement, or
                  permission.

                  (e) To the Knowledge of any of the Nova Shareholders and the
         directors and officers (and employees with responsibility for
         Intellectual Property matters) of Nova, Nova will not interfere with,
         infringe upon, misappropriate, or otherwise come into conflict with,
         any Intellectual Property rights of third parties as a result of the
         continued operation of its businesses as presently conducted and as
         presently proposed to be conducted.

                  (f) None of the Nova Shareholders and the directors and
         officers (and employees with responsibility for Intellectual Property
         matters) of Nova has any Knowledge of any new products, inventions,
         procedures, or methods of manufacturing or processing that any
         competitors or other third parties have developed which reasonably
         could be expected to supersede or make obsolete any product or process
         of Nova.

         4.14 Tangible Assets. Nova owns or leases all buildings, machinery,
equipment, and other tangible assets necessary for the conduct of its business
as presently conducted. Each such tangible asset is free from defects (patent
and latent), has been maintained in accordance with normal industry practice, is
in good operating condition and repair (subject to normal wear and tear), and is
suitable for the purposes for which it presently is used.

         4.15 Inventory. The inventory of Nova consists of raw materials and
supplies, manufactured and purchased parts, goods in process, and finished
goods, all of which is merchantable and fit for the purpose for which it was
procured or manufactured, and none of which is slow-moving, obsolete, damaged,
or defective, subject only to the reserve for inventory writedown set forth on
the face of the Most Recent Balance Sheet (rather than in any notes thereto) as
adjusted for the passage of time through the Closing Date in accordance with the
past custom and practice of Nova.

         4.16 Contracts. Section 4.16 of the Nova Disclosure Schedule lists all
contracts, commitments, agreements (including agreements for the borrowing of
money or the extension of credit), leases (other than real property leases),
understandings and obligations, whether written or oral, to which Nova is a
party or by which Nova is bound or affected, other than obligations to pay
monthly amounts of $1,000.00 or less ("Contracts"). Nova has delivered to ACL
true and complete copies of all written Contracts and true and complete
memoranda of all oral Contracts, including any and all amendments and other
modifications thereto. Each of the Contracts is valid, binding and enforceable
in accordance with its terms and is in full force

                                       27





and effect. No purchase commitments are in excess of the requirements of the
Ordinary Course of Business of Nova. There are no existing defaults by Nova, and
no events or circumstances have occurred which, with or without notice or lapse
of time or both, would constitute defaults by Nova under any of the Contracts.
The consummation of the transactions contemplated by this Agreement will not,
with respect to any Contract, (i) constitute a default thereunder, (ii) require
the consent of any person or party, or (iii) affect the continuation, validity
and effectiveness thereof or the terms thereof.

         4.17 Notes and Accounts Receivable. All notes and accounts receivable
of Nova are reflected properly on their books and records, are valid receivables
subject to no setoffs or counterclaims, are current and collectible in
accordance with the terms thereof, and will be collected in accordance with
their terms at their recorded amounts, subject only to the reserve for bad debts
set forth on the face of the most recent Balance Sheet (rather than in any notes
thereto) as adjusted for the passage of time through the Closing date in
accordance with the past custom and practice of Nova.

         4.18 Liabilities. Section 4.18 of the Disclosure Schedule contains a
true and complete list of all Liabilities of Nova, including without limitation
all accounts payable, obligations to furnish goods or services or to pay for
goods or services to be delivered, Taxes, and other accrued expenses of whatever
kind, whether or not shown on the Financial Statements.

         4.19 Powers of Attorney. There are no outstanding powers of attorney
executed on behalf of any of Nova.

         4.20 Insurance. Section 4.20 of the Disclosure Schedule describes all
insurance policies maintained by Nova with respect to its business. Such
policies are valid, binding and enforceable in accordance with their terms, are
in full force and effect, and all premiums due thereon have been paid and will
be paid through the Closing date. To the best of the Knowledge of the Nova
Shareholders, such policies provide adequate coverage for all risks customarily
insured against by companies engaging in a business similar to the business of
Nova. Except as shown on Section 4.20 of the Disclosure Schedule, Nova has not
been refused any insurance by any insurance carrier during the past two years.

         4.21 Litigation. Section 4.21 of the Disclosure Schedule sets forth
each instance in which Nova (i) is subject to any outstanding injunction,
judgment, order, decree, ruling, or charge or (ii) is a party or, to the
Knowledge of any of the Nova Shareholders and the directors and officers (and
employees with responsibility for litigation matters) of Nova, is threatened to
be made a party to any action, suit, proceeding, hearing, or investigation of,
in, or before any court or quasi-judicial or administrative agency of any
federal, state, local, or foreign jurisdiction or before any arbitrator. None of
the actions, suits, proceedings, hearings, and investigations set forth in
Section 4.21 of the Disclosure Schedule could result in any material adverse
change in the business, financial condition, operations, results of operations,

                                       28





or future prospects of Nova. None of the Nova Shareholders and the directors and
officers (and employees with responsibility for litigation matters) of Nova has
any reason to believe that any such action, suit, proceeding, hearing, or
investigation may be brought or threatened against Nova.

         4.22 Product Warranty. Each product manufactured, sold, leased, or
delivered by Nova has been in conformity with all applicable contractual
commitments and all express and implied warranties, and Nova has no Liability
(and there is no Basis for any present or future action, suit, proceeding,
hearing, investigation, charge, complaint, claim, or demand against any of them
giving rise to any Liability) for replacement or repair thereof or other damages
in connection therewith, subject only to the reserve for product warranty claims
set forth on the face of the Most Recent Balance Sheet (rather than in any notes
thereto) as adjusted for the passage of time through the Closing Date in
accordance with the past custom and practice of Nova. No product manufactured,
sold, leased, or delivered by Nova is subject to any guaranty, warranty, or
other indemnity beyond the applicable standard terms and conditions of sale or
lease. Section 4.22 of the Disclosure Schedule includes copies of the standard
terms and conditions of sale or lease for Nova (containing applicable guaranty,
warranty, and indemnity provisions).

         4.23 Product Liability. Nova has no Liability (and there is no Basis
for any present or future action, suit, proceeding, hearing, investigation,
charge, complaint, claim, or demand against any of them giving rise to any
Liability) arising out of any injury to individuals or property as a result of
the ownership, possession, or use of any product manufactured, sold, leased, or
delivered by Nova.

         4.24 Employees. To the Knowledge of any of the Nova Shareholders and
the directors and officers (and employees with responsibility for employment
matters) of Nova, no executive, key employee, or group of employees has any
plans to terminate employment with Nova. Nova is not a party to or bound by any
collective bargaining agreement, nor has it experienced any strikes, grievances,
claims of unfair labor practices, or other collective bargaining disputes. Nova
has not committed any unfair labor practice.

         4.25     Employee Benefits.

                  (a) Nova does not now maintain and has not ever maintained an
         Employee Benefit Plan.

                  (b) Nova does not contribute to, never has contributed to and
         never has been required to contribute to any Multiemployer Plan or has
         any Liability (including withdrawal Liability) under any Multiemployer
         Plan.

                  (c) Section 4.25 of the Disclosure Schedule lists each
         Employee Welfare Benefit Plan maintained or sponsored providing
         medical, health, or life insurance or

                                       29





         other welfare-type benefits for current or future retired or terminated
         employees, their spouses, or their dependents (other than in accordance
         with Code ss.4980B). All such plans are in full compliance with ERISA.

         4.26 Guaranties. Nova is not a guarantor or otherwise is liable for any
Liability or obligation (including indebtedness) of any other Person.

         4.27 Environmental Protection. The existing and prior uses of the
assets of Nova comply with, and at all times have complied with, and Nova is not
in violation of and has not violated, in connection with the ownership, use,
maintenance or operation of its assets, any Environmental Laws. For purposes
hereof, "Environmental Laws" means any applicable federal, state, county or
local statutes, laws, regulations, rules, ordinances, codes, licenses or permits
of any governmental authorities relating to environmental matters, including by
way of illustration and not by way of limitation the Comprehensive Environmental
Response, Compensation and Liability Act as amended, the Resource Conservation
Recovery Act as amended, the Clean Air Act, the Toxic Substances Control Act,
any "Superfund" or "Superlien" law, or any other federal, state or local
statute, law, ordinance, code, rule, regulation, order, decree or guideline
(whether published or unpublished) regulating, relating to or imposing liability
or standards of conduct concerning any petroleum, petroleum by- product
(including but not limited to crude oil, diesel oil, fuel oil, gasoline,
lubrication oil, oil refuse, oil hydrocarbons, regardless of specific gravity),
natural or synthetic gas, hazardous substance or materials, toxic or dangerous
waste, substance or material, pollutant or contaminant.

         4.28 Disclosure. The representations and warranties contained in this
Article IV do not contain any untrue statement of a material fact or omit to
state any material fact necessary in order to make the statements and
information contained in this Article IV not misleading.

                                    ARTICLE V
                              PRE-CLOSING COVENANTS

         The Parties agree as follows with respect to the period between the
execution of this Agreement and the Closing:

         5.1 General. Each of the Parties will use his or its reasonable best
efforts to take all action and to do all things necessary, proper, or advisable
in order to consummate and make effective the transactions contemplated by this
Agreement (including satisfaction, but not waiver, of the closing conditions set
forth in Article VII below).

         5.2 Notices and Consents. Nova will give any notices to third parties,
and will use its best efforts to obtain any third party consents, that ACL
reasonably may request in connection with the matters referred to in Section 4.3
above. Each of the Parties will give any notices to, make any filings with, and
use its reasonable best efforts to obtain any

                                       30





authorizations, consents, and approvals of governments and governmental agencies
required to consummate the transactions contemplated herein.

         5.3 Operation of Business. Nova will not engage in any practice, take
any action, or enter into any transaction outside the Ordinary Course of
Business. Without limiting the generality of the foregoing, Nova will not
declare, set aside, or pay any dividend or make any distribution with respect to
its capital stock or redeem, purchase, or otherwise acquire any of its capital
stock, or otherwise engage in any practice, take any action, or enter into any
transaction of the sort described in Article IV above.

         5.4 Preservation of Business. Nova will keep its business and
properties substantially intact, including its present operations, physical
facilities, working conditions, and relationships with lessors, licensors,
suppliers, customers, and employees.

         5.5 Full Access. Nova will permit representatives of ACL to have full
access at all reasonable times, and in a manner so as not to interfere with the
normal business operations of Nova, to all premises, properties, personnel,
books, records (including Tax records), contracts, and documents of or
pertaining to Nova.

         5.6 Notice of Developments. Nova will give prompt written notice to ACL
of any material adverse development causing a breach of any of the
representations and warranties above. Each Party will give prompt written notice
to the others of any Material Adverse Development causing a breach of any of his
or its own representations and warranties above. No disclosure by any Party
pursuant to this Section 5.6, however, shall be deemed to amend or supplement
the Disclosure Schedule or to prevent or cure any misrepresentation, breach of
warranty, or breach of covenant.

         5.7 Exclusivity. Nova will not (i) solicit, initiate, or encourage the
submission of any proposal or offer from any Person relating to the acquisition
of any capital stock or other voting securities, or any substantial portion of
the assets, of Nova (including any acquisition structured as a merger,
consolidation, or share exchange) or (ii) participate in any discussions or
negotiations regarding, furnish any information with respect to, assist or
participate in, or facilitate in any other manner any effort or attempt by any
Person to do or seek any of the foregoing. Nova will notify ACL immediately if
any Person makes any proposal, offer, inquiry, or contact with respect to any of
the foregoing.

         5.8 Plan of Merger; Reservation of Shares. ACL has reserved for
issuance such number of shares of ACL Stock as shall be necessary to pay the
consideration to be distributed to the Nova Shareholders as contemplated in
Article II. If at any time the aggregate number of shares of ACL Stock available
for issuance hereunder shall not be sufficient to effect the Merger, ACL shall
take all appropriate action as may be required to increase the amount of the
authorized ACL Stock.


                                       31





         5.9 Press Releases. ACL and Nova shall agree with each other as to the
form and substance of any press release related to this Agreement or the
transactions contemplated hereby and thereby, and consult with each other as to
the form and substance of other public disclosures related thereto, provided,
that nothing contained herein shall prohibit either party, following
notification to the other party, from making any disclosure which it reasonably
believes to be required by law.

         5.10 Employment Agreements. ACL shall enter into an employment
agreement with Bart C. Gutekunst ("Gutekunst") in form and substance as attached
hereto as Exhibit 5.10.

                                   ARTICLE VI
                             POST-CLOSING COVENANTS

         The Parties agree as follows with respect to the period following the
Closing:

         6.1 General. In case at any time after the Closing any further action
is necessary or desirable to carry out the purposes of this Agreement, each of
the Parties will take such further action (including the execution and delivery
of such further instruments and documents) as any other Party reasonably may
request, all at the sole cost and expense of the requesting Party (unless the
requesting Party is entitles to indemnification therefor under Article VI
below). Nova acknowledges and agrees that from and after the Closing ACL will be
entitled to possession of all documents, books, records (including Tax records),
agreements, and financial data of any sort relating to Nova.

         6.2 Litigation Support. In the event and for so long as any Party
actively is contesting or defending against any action, suit, proceeding,
hearing, investigation, charge, complaint, claim, or demand in connection with
(i) any transaction contemplated under this Agreement or (ii) any fact,
situation, circumstance, status, condition, activity, practice, plan,
occurrence, event, incident, action, failure to act, or transaction on or prior
to the Closing Date involving Nova, each of the other Parties will cooperate
with him or it and his or its counsel in the contest or defense, make available
their personnel, and provide such testimony and access to their books and
records as shall be necessary in connection with the contest or defense, all at
the sole cost and expense of the contesting or defending Party (unless the
contesting or defending Party is entitled to indemnification therefor under
Article VIII below).

         6.3 Transition. Nova will not take any action that is designed or
intended to have the effect of discouraging any lessor, licensor, customer,
supplier, or other business associate of Nova from maintaining the same business
relationships with Nova after the Closing as it maintained with Nova prior to
the Closing.

         6.4 Confidentiality. Nova will treat and hold as such all of the
Confidential Information, refrain from using any of the Confidential Information
except in connection with this Agreement, and deliver promptly to ACL or
destroy, at the request and option of ACL,

                                       32





all tangible embodiments (and all copies) of the Confidential Information which
are in his or its possession. In the event that Nova or any of its Shareholders,
officers or directors are requested or required (by oral question or request for
information or documents in any legal proceeding, interrogatory, subpoena, civil
investigative demand, or similar process) to disclose any Confidential
Information, Nova will notify ACL promptly of the request or requirement so that
ACL may seek an appropriate protective order or waive compliance with the
provisions of this Section 6.4. If, in the absence of a protective order or the
receipt of a waiver hereunder, any of the Nova Shareholders is, on the advice of
counsel, compelled to disclose any Confidential Information to any tribunal or
else stand liable for contempt, that Nova may disclose the Confidential
Information to the tribunal; provided, however, that Nova shall use its
reasonable best efforts to obtain, at the reasonable request of ACL, an order or
other assurance that confidential treatment will be accorded to such portion of
the Confidential Information required to be disclosed as ACL shall designate.
The foregoing provisions shall not apply to any Confidential Information which
is generally available to the public immediately prior to the time of
disclosure.

         6.5 Registration. Upon written request by the majority in interest of
the Nova Shareholders who receive ACL Common Stock upon consummation of the
Merger, as promptly as practicable following the receipt by ACL of the audited
financial statements required by the Securities and Exchange Commission, but not
more than 60 days thereafter or after receipt of such written request, whichever
is later, ACL shall file a registration statement on Form S-3 or an equivalent
form under the Securities Act and any applicable state securities laws covering
resale of the ACL Common Stock issued to the Nova Shareholders in the Merger and
shall use its best efforts to cause the registration statement to remain
effective and current until such time as such Nova Shareholders are entitled to
sell such shares under Rule 144 of the Securities and Exchange Commission. Such
registration shall be effected at the Company's expense except for underwriting
discounts and commissions and fees and expenses of counsel for the Nova
Shareholders, if any. If at any time during the effectiveness of the
registration statement, ACL becomes aware that the information contained in the
registration statement is not current, ACL will promptly notify Nova
Shareholders whose ACL Common Stock is registered thereunder, who will refrain
from selling any further shares pursuant to the registration statement until
such time as it is amended to render it current. ACL shall not, however, be
required to amend the registration statement to include undisclosed material
information that has not been disclosed for business reasons, and the Nova
Shareholders will refrain from selling shares pursuant to the registration
statement until such time as ACL notifies them that the information is no longer
material or has been disclosed in a report or other document filed with the
Securities and Exchange Commission.


                                       33





                                   ARTICLE VII
                              CONDITIONS PRECEDENT

         7.1 Conditions Precedent -- ACL and Nova. The respective obligations of
ACL and Nova to effect the transactions contemplated by this Agreement shall be
subject to satisfaction or waiver of the following conditions at or prior to the
Closing Date:

                  (a) All corporate action necessary to authorize the execution,
         delivery and performance of this Agreement and consummation of the
         transactions contemplated hereby and thereby shall have been duly and
         validly taken.

                  (b) Neither ACL nor Nova shall be subject to any order, decree
         or injunction of a court or agency of competent jurisdiction which
         enjoins or prohibits consummation of the merger or the other
         transactions contemplated by this Agreement and no action, suit or
         proceeding shall be pending or, in the good faith opinion of the
         terminating party, threatened, which seeks to enjoin or prohibit
         consummation of the transactions contemplated by this Agreement or
         seeks material damages in respect thereof;

                  (c) Bart C. Gutekunst, William H. Burns, Jr. and Alan Rabin
         shall have been elected as directors of ACL;

                  (d) Sirrom shall have converted 1,000,000 shares of Nova
         Series A Preferred Stock into 1,000,000 shares of Nova Common Stock;

                  (e) Approximately 1,750,000 shares of ACL Series A Preferred
         Stock shall have been issued to TD in satisfaction of approximately
         $1,750,000 of the TD SubDebt, leaving a balance of the TD SubDebt of
         $550,000; and

                  (f) OcuTec shall have released its warrants for 200,000 shares
         of Nova Common Stock at $1.00 per share, effective as of the Closing
         Date.

         7.2 Conditions to Obligation of ACL. The obligation of ACL to
consummate the transactions to be performed by it in connection with the Closing
is subject to satisfaction of the following conditions:

                  (a) the representations and warranties set forth in Article IV
         above shall be true and correct in all material respects at and as of
         the Closing date;

                  (b) Nova shall have performed and complied with all of its
         covenants hereunder in all material respects through the Closing;


                                       34





                  (c) Nova shall have procured all of the third party consents
         specified in Section 4.3 above.

                  (d) Nova shall have delivered to ACL a certificate to the
         effect that each of the conditions specified above in Section 7.2(a)
         through (c) is satisfied in all respects;

                  (e) Bart C. Gutekunst shall have entered into an employment
         agreement with ACL in the form as attached hereto as Exhibit 5.10.

                  (f) Each of the Nova Shareholders (other than OcuTec) shall
         have delivered to ACL a duly executed Accredited Investor
         Representation in the form of Exhibit 7.2(f) attached hereto.

                  (g) OcuTec shall have delivered to ACL a duly executed
         Investor Representation in the form of Exhibit 7.2(g) attached hereto.

                  (h) Bart C. Gutekunst, William H. Burns, Jr., and the Nova
         Stock Option Holders shall have delivered to ACL a duly executed Escrow
         and Indemnity Agreement in the form of Exhibit 8.6(b) attached.

                  (i) OcuTec, Alan Touch, James Jansen and Lewis Eslinger shall
         have delivered to ACL a duly executed Estoppel Certificate in the form
         of Exhibit 7.2(i) attached hereto.

                  (j) ACL shall have received from counsel to Nova an opinion in
         form and substance as set forth in Exhibit 7.2(j) attached hereto,
         addressed to ACL, and dated as of the Closing Date;

                  (k) Each of the Nova Shareholders shall have delivered to ACL
         a duly executed certificate in the form of Exhibit 7.2(k) attached.

                  (l) ACL shall have obtained from Sirrom financing
         substantially in accordance with the terms and conditions outlined in
         Sirrom's letter to ACL and Nova dated March 17, 1997; and

                  (m) all actions to be taken by Nova and the Nova Shareholders
         in connection with consummation of the transactions contemplated hereby
         and all certificates, opinions, instruments, and other documents
         required to effect the transactions contemplated hereby will be
         reasonably satisfactory in form and substance to ACL.

         ACL may waive any condition specified in this Section 7.2 if it
executes a writing so stating at or prior to the Closing.


                                       35





         7.3 Conditions to Obligation of Nova. The obligation of Nova to
consummate the transactions to be performed by it in connection with the Closing
is subject to satisfaction of the following conditions:

                  (a) the representations and warranties set forth in Article
         III above shall be true and correct in all material respects at and as
         of the Closing Date;

                  (b) ACL shall have performed and complied with all of its
         covenants hereunder in all material respects through the Closing;

                  (c) ACL shall have delivered to Nova a certificate to the
         effect that each of the conditions specified above in Sections 7.3(a)
         and (b) is satisfied in all respects;

                  (d) Nova shall have received from counsel to ACL an opinion in
         form and substance as set forth in Exhibit 7.3(d) attached hereto,
         addressed to Nova, and dated as of the Closing date; and

                  (e) all actions to be taken by ACL in connection with
         consummation of the transactions contemplated hereby and all
         certificates, opinions, instruments, and other documents required to
         effect the transactions contemplated hereby will be reasonably
         satisfactory in form and substance to the Nova Shareholders.

         Nova may waive any condition specified in this Section 7.3 if it
executes a writing so stating at or prior to the Closing.

                                  ARTICLE VIII
                     REMEDIES FOR BREACHES OF THIS AGREEMENT

         8.1      Indemnity.

                  (a) Nova agrees to indemnify and hold harmless ACL and NVA,
         and their respective representatives, shareholders, controlling persons
         and affiliates, for any Adverse Consequences that ACL or NVA may
         suffer, which arise, directly or indirectly, from the breach of any of
         the representations, warranties or covenants of Nova contained in this
         Agreement or the Schedules or other documents delivered in connection
         therewith relating to Intellectual Property or which gives rise to an
         undisclosed Liability. The indemnity obligations of Nova shall be
         enforceable by ACL or NVA against the Indemnity Shares (as defined in
         Section 8.6(b) hereof) and against the Nova Shareholders and
         Optionholders to the extent provided in the Escrow and Indemnity
         Agreement (as defined in Section 8.6).

                  (b) ACL agrees to indemnify and hold harmless the Nova
         Shareholders, and their respective representatives, shareholders,
         controlling persons and affiliates for any

                                       36





         Adverse Consequences that Nova or the Nova Shareholders may suffer,
         which arise, directly or indirectly, from the breach of any of the
         representations, warranties or covenants of ACL or NVA contained in
         this Agreement or the Schedules or other documents delivered in
         connection therewith which give rise to an undisclosed Liability.

                  (c) No party (the "Indemnifying Party) shall have any
         obligation to indemnify any other party entitled to indemnity (the
         Indemnified Party") under this Section 8.1 from and against any Adverse
         Consequences suffered by any other party which arise from the breach of
         any representations, warranties or covenants (i) until the total of all
         Adverse Consequences with respect to such matters exceeds $75,000 and
         then only (x) for the amount by which such Adverse Consequences exceed
         $75,000, and (y) with respect to Adverse Consequences arising from any
         individual breach or series of related breaches which equal or exceed
         $5,000, and (ii) to the extent the total of all Adverse Consequences
         suffered by the Indemnified Party with respect to such matters exceeds
         a $2,7000,000 aggregate ceiling.

         8.2      Notices, Claims and Defense.

         If any matter should arise which, in the opinion of the Indemnified
Party, shall constitute or give rise to an Adverse Consequences subject to
indemnification under this Article VIII (an "Indemnity Claim"), the Indemnified
Party shall promptly send written notice (a "Notice of Claim") of same to the
Indemnifying Party by first class registered or certified mail, return receipt
requested. The Notice of Claim shall describe the relevant circumstances
(including, to the extent determinable, the estimated amount for which
indemnification under this Article VIII is sought) in reasonable detail. The
Indemnifying Party shall have a period of 30 days after Notice of Claims within
which to cure the Adverse Consequences. The Indemnified Party shall continue to
advise the Indemnifying Party promptly as to developments which may come to its
attention affecting matters relating to such claim. The Indemnified Party will
use its best efforts to mitigate the Adverse Consequences with respect to which
any such Notice of Claim has been given, and, if such Indemnity Claim is based
upon a claim, demand, suit or action of a third party (a "Third Party Claim"),
then the provisions of Section 8.3 below with respect to the defense thereof
shall be applicable.

         8.3 Defense of Third Party Claims. In the event that any third party
initiates a claim, demand, suit or action for which indemnification is sought
under this Article VIII, then within thirty (30) days after receipt of notice of
any such claim, demand, suit or action (the "Third Party Claim") the Indemnified
Party shall, if an Indemnity Claim in respect thereof is to be made against the
Indemnifying Party hereunder, notify the Indemnifying Party in writing of such
Third Party Claim. Except as provided in the next sentence, in the case of any
such Third Party Claim, the Indemnifying Party shall be entitled to participate
therein, by assuming the defense thereof with counsel satisfactory to the
Indemnified Party after notice from the Indemnifying Party to the Indemnified
Party of its or their election to assume the defense

                                       37





thereof and, thereafter, the Indemnifying Party shall not be liable to the
Indemnified Party hereunder for any legal expenses subsequently incurred by
Indemnified Party in connection with the defense thereof. The Indemnified Party
shall have the right to employ its own counsel in any such defense and the fees
and expenses of such counsel, and other expenses subsequently incurred by the
Indemnified Party in connection with such defense, shall be at the expense of
the Indemnified Party, unless (i) the employment of such counsel has been
authorized by the Indemnifying Party in connection with the defense of any such
claim or (ii) the Indemnified Party reasonably shall have determined that a
conflict of interest exists which makes representation by its own counsel
advisable or (iii) the Indemnifying Party shall not have assumed the defense of
such action and employed counsel therefor reasonably satisfactory to the
Indemnified Party within a reasonable time after notice of such action is given,
and in any such event the fees and expenses shall constitute a portion of the
Adverse Consequences with respect to which the Indemnified Party will be
entitled to indemnification.

         8.4 Determination of Adverse Consequences. The Parties shall take into
account the time cost of money in determining Adverse Consequences for purposes
of this Article VIII.

         8.5 Dispute Resolution. Any claim, controversy, or dispute (a
"Dispute") with respect to an Indemnity Claim hereunder shall, to the maximum
extent allowed by applicable law, be submitted to and finally resolved by
binding arbitration. An Indemnifying Party may file a written Demand for
Arbitration with the American Arbitration Association's Charlotte, North
Carolina Regional Office, and shall send a copy of the Demand for Arbitration to
the Indemnified Party. The arbitration shall be conducted pursuant to the terms
of the Federal Arbitration Act and (except as otherwise specified herein) the
Commercial Arbitration Rules of the American Arbitration Association in effect
at the time the arbitration is commenced. The venue for the arbitration shall be
Raleigh, North Carolina. The arbitration shall be conducted before one (1)
arbitrator selected through the American Arbitration Association's arbitrator
selection procedures. The arbitrator thus constituted shall promptly fix the
time, date(s), and place of the hearing, and notify the parties. The arbitrator
shall render a decision within ten (10) days of completion of the hearing, which
decision may include an award of interest, legal fees and costs of arbitration.
If the decision of the arbitrator does not include an award of legal fees or
costs of arbitration, the Indemnifying Party shall pay its own legal fees, the
legal fees of the Indemnified Party, plus the costs of arbitration. The
arbitrator shall promptly transmit an executed copy of the award to all of the
parties hereto. The award of the arbitrator shall be final, binding and
conclusive upon the parties hereto and shall be enforceable in any court of
competent jurisdiction.

         8.6 Limitation on Indemnification. (a) Except as otherwise provided in
the Escrow and Indemnity Agreement, an Indemnifying Party shall have no
liability to an Indemnified Party under Section 8.1 of this Article VIII unless
on or before the second anniversary following the Closing Date an Indemnified
Party gives notice to an Indemnifying Party specifying the factual basis of a
claim hereunder in reasonable detail to the extent then known to an Indemnified
Party.

                                       38





         (b) The liability of the Indemnifying Party to ACL or NVA will not
exceed in the aggregate the value, from time to time, of the shares of ACL
Common Stock received by the Nova Shareholders or reserved for Nova Stock Option
Holders in the Merger (the "Indemnity Shares"), and ACL's sole remedy for breach
of any of Nova's representations, warranties and covenants shall be to proceed
as provided in the Escrow and Indemnity Agreement in the form attached as
Exhibit 8.6(b).

         (c) In the event of an Indemnity Claim against ACL or NVA, ACL may
either pay the amount of an Indemnity Claim in cash or, in its discretion, issue
to the Indemnified Party ACL Common Stock which is registered or will be
registered for resale upon the request of such Indemnified Party. The number of
shares of ACL Common Stock so issued shall equal the amount of the Indemnity
Claim, as agreed or finally determined, divided by the greater of $1.00 or the
fair market value of one share of ACL Common Stock as determined by the average
of high bid for ACL Common Stock an NASDAQ for the ten trading days immediately
preceding the date of the notice of indemnity Claim. Each Indemnified Party
agrees to provide to ACL such representations and warranties as ACL may
reasonably request to ensure compliance with applicable federal and state
securities laws with respect to such stock issuance.

         8.8 Exclusive Remedy. The Parties acknowledge and agree that the
foregoing indemnification provisions in this Article VIII shall be the exclusive
remedy of the parties with respect to Nova, its subsidiary, and their respective
officers and directors, and the transactions contemplated by this Agreement.
Without limiting the generality of the foregoing, the Parties hereby waive any
statutory, equitable, or common law rights or remedies relating to any
Environmental Laws.

                                   ARTICLE IX
                                   TERMINATION

         9.1 Termination. This Agreement may be terminated and the Acquisition
abandoned:

                  (a) at any time prior to the Closing Date, by the consent in
         writing of Nova and ACL;

                  (b) at any time prior to the Closing Date, by ACL in writing
         if Nova or any of the Nova Shareholders has, or by Nova in writing if
         ACL has, breached (i) any covenant or undertaking contained herein, or
         (ii) any representation or warranty contained herein, and, in each such
         case, if such breach is materially adverse and has not been cured by
         the earlier of 10 days following written notice of such breach to the
         party committing such breach or the Closing Date;


                                       39





                  (c) on the Closing Date, by Nova or ACL in writing, if any of
         the conditions precedent to the obligations of such party to consummate
         the transactions contemplated hereby have not been satisfied or
         fulfilled, and the party giving the notice is not in breach of any of
         its representations, warranties, covenants or undertakings herein;

                  (d) at any time prior to the Closing Date, by ACL in writing
         if the Nova Shareholders, when their vote is taken thereon, do not
         unanimously approve the Acquisition contemplated herein;

                  (e) at any time following May 15, 1997, by Nova or ACL in
         writing, if the Closing Date has not occurred by the close of business
         on such date, and the party giving the notice is not in breach of any
         of its representations, warranties, covenants or undertakings therein;
         and

                  (f) at any time prior to May 15, 1997 by ACL in writing if ACL
         determines in good faith, after the performance of its due diligence,
         that the financial conditions, business or prospects of Nova are
         materially adversely different from what was reasonably expected by
         ACL; provided that ACL shall advise Nova at least 10 days prior to such
         termination as to the reasons for ACL's determination and Nova shall
         have a period of 10 days following such notice to cure such conditions
         in a manner satisfactory to ACL; and, provided further, that this
         Section 9.1(f) shall not limit in any way the due diligence
         investigation of Nova which ACL may perform or otherwise affect any
         other rights which ACL has after the date hereof under the terms of
         this Agreement.

         9.2 Effect of Termination. In the event this Agreement is terminated
pursuant to Section 10.1, this Agreement shall become void and have no effect,
except that (i) the provisions hereof relating to press releases,
confidentiality and expenses set forth in Sections 5.9, 6.4, and 10.2,
respectively, shall survive any such termination.

                                    ARTICLE X
                                  MISCELLANEOUS

         10.1 No Third-Party Beneficiaries. Except as specifically provided
herein, this Agreement shall not confer any rights or remedies upon any Person
other than the Parties and their respective successors and permitted assigns.

         10.2 Expenses. Each of ACL and Nova shall pay its own expenses,
including attorney's fees, with respect to the Merger and the other transactions
contemplated hereby.

         10.3 Entire Agreement. This Agreement (including the documents referred
to herein) constitutes the entire agreement among the Parties and supersedes any
prior

                                       40





understandings, agreements, or representations by or among the Parties, written
or oral, to the extent they related in any way to the subject matter hereof.

         10.4 Succession and Assignment. This Agreement shall be binding upon
and inure to the benefit of the Parties named herein and their respective
successors and permitted assigns. No Party may assign either this Agreement or
any of his or its rights, interests, or obligations hereunder without the prior
written approval of the Parties; provided, however, that ACL may (i) assign any
or all of its rights and interests hereunder to one or more of its Affiliates
and (ii) designate one or more of its Affiliates to perform its obligations
hereunder (in any or all of which cases ACL nonetheless shall remain responsible
for the performance of all of its obligations hereunder).

         10.5 Counterparts. This Agreement may be executed in one or more
counterparts, each of which shall be deemed an original but all of which
together will constitute one and the same instrument.

         10.6 Headings. The section headings contained in this Agreement are
inserted for convenience only and shall not affect in any way the meaning or
interpretation of this Agreement.

         10.7 Notices. All notices, requests, demands, claims, and other
communications hereunder will be in writing. Any notice, request, demand, claim,
or other communication hereunder shall be deemed duly given if (and then two
business days after) it is sent by registered or certified mail, return receipt
requested, postage prepaid, and addressed to the intended recipient as set forth
below:

   If to Nova:                                Copy to:
   -----------                                --------
   NOVAVISION, INC.                           W. THURSTON DEBNAM, JR.
   2700-200 Gateway Centre Blvd.              4700 New Bern Avenue
   Morrisville, North Carolina  27580         Raleigh, North Carolina 27610
   Telephone:919-469-3733                     Telephone:919-250-2000
   Fax:919-460-4487                           Fax: 919-250-2100
   Attention: Bart C. Gutekunst
   Chief Executive Officer

   If to ACL or NVA:                          Copy to:
   American Consolidated Laboratories, Inc.   Schell Bray Aycock Abel &
   1640 North Market Drive                    Livingston P.L.L.C.
   Raleigh, North Carolina  27609             P.O. Box 21847
   Telephone:919-872-0744                     Greensboro, North Carolina 27401
   Fax: 919-873-0042                          Telephone: 910-370-8800
   Attention:Chief Executive Officer          Fax: 910-370-8830
                                              Attention: Doris R. Bray

                                       41





                                              Tullis-Dickerson Capital Focus, LP
                                              1 Greenwich Plaza
                                              Greenwich, CT 06830
                                              Telephone: 203-629-8700
                                              Fax: 203-629-9293
                                              Attention: Joan Neuscheler

         Any Party may send any notice, request, demand, claim, or other
communication hereunder to the intended recipient at the address set forth above
using any other means (including personal delivery, expedited courier, messenger
service, telecopy, telex, ordinary mail, or electronic mail), but no such
notice, request, demand, claim, or other communication shall be deemed to have
been duly given unless and until it actually is received by the intended
recipient. Any Party may change the address to which notices, requests, demands,
claims, and other communications hereunder are to be delivered by giving the
other Parties notice in the manner herein set forth.

         10.8 Governing Law. This Agreement shall be governed by and construed
in accordance with the domestic laws of the State of North Carolina without
giving effect to any choice or conflict of law provision or rule (whether of the
State of North Carolina or any other jurisdiction) that would cause the
application of the laws of any jurisdiction other than the State of North
Carolina.

         10.9 Amendments and Waivers. No amendment of any provision of this
Agreement shall be valid unless the same shall be in writing and signed by the
Parties. No waiver by any Party of any default, misrepresentation, or breach of
warranty or covenant hereunder, whether intentional or not, shall be deemed to
extend to any prior or subsequent default, misrepresentation, or breach of
warranty or covenant hereunder or affect in any way any rights arising by virtue
of any prior or subsequent such occurrence.

         10.10 Incorporation of Exhibits and Schedules. The Exhibits and
Schedules identified in this Agreement are incorporated herein by reference and
made a part hereof.

         10.11 Submission to Jurisdiction. Each of the Parties submits to the
jurisdiction of any state or federal court sitting in Raleigh, North Carolina,
in any action or proceeding arising out of or relating to this Agreement and
agrees that all claims in respect of the action or proceeding may be heard and
determined in any such court. Each Party also agrees not to bring any action or
proceeding arising out of or relating to this Agreement in any other court. Each
of the Parties waives any defense of inconvenient forum to the maintenance of
any action or proceeding so brought and waives any bond, surety, or other
security that might be required of any other Party with respect thereto. Each
Party agrees that a final judgment in any action or proceeding so brought shall
be conclusive and may be enforced by suit on the judgment or in any other manner
provided by law or at equity.


                                       42






         IN WITNESS WHEREOF, the Parties hereto have executed this Agreement as
of the date first above written.


NOVAVISION, INC.

By: /s/ Bart C. Gutekunst
    ---------------------
Title: CEO
    ---------------------



AMERICAN CONSOLIDATED LABORATORIES, INC.


By: /s/ Joseph A.Arena
    ---------------------
Title: CEO
    ---------------------

NV ACQUISITION, INC.


By: /s/ Joseph A.Arena
    ---------------------
Title: CEO
    ---------------------


                                       43




                              SCHEDULE OF EXHIBITS


EXHIBIT

2.1               Plan of Merger

3                 ACL Disclosure Schedule

4                 Nova Disclosure Schedule

5.10              Gutekunst Employment Agreement

7.2(f)            Accredited Investor Representation

7.2(g)            OcuTec Investor Representation

7.2(i)            Estoppel Certificate

7.2(j)            Nova Attorney Opinion

7.2(k)            Nova Shareholder Certificate

7.3(d)            ACL Attorney Opinion

8.6(b)            Escrow and Indemnity Agreement

                                       44