EXHIBIT 10.24
 
                               TABLE OF CONTENTS

                                                                            Page
                                                                            ----

1  ACCOUNTING AND OTHER TERMS..............................................   4
   --------------------------

2  LOAN AND TERMS OF PAYMENT...............................................   4
   -------------------------
        2.1  Advances......................................................   4
        2.2  Interest Rate, Payments.......................................   4
        2.3  Fees..........................................................   5

3  CONDITIONS OF LOANS.....................................................   5
   -------------------
        3.1  Conditions Precedent to Initial Advance.......................   5
        3.2  Conditions Precedent to all Advances..........................   5

4  REPRESENTATIONS AND WARRANTIES..........................................   5
   ------------------------------
        4.1  Due Organization and Authorization............................   5
        4.2  Litigation....................................................   5
        4.3  No Material Adverse Change in Financial Statements............   5
        4.4  Solvency......................................................   6
        4.5  Regulatory Compliance.........................................   6
        4.6  Subsidiaries..................................................   6
        4.7  Full Disclosure...............................................   6

5  AFFIRMATIVE COVENANTS...................................................   6
   ---------------------
        5.1  Government Compliance.........................................   6
        5.2  Taxes.........................................................   6
        5.3  Insurance.....................................................   7
        5.4  Primary Accounts..............................................   7

6  NEGATIVE COVENANTS......................................................   7
   ------------------
        6.1  Changes in Business, Ownership, Management or Business 
             Locations.....................................................   7
        6.2  Mergers or Acquisitions.......................................   7
        6.3  Compliance....................................................   7

7  EVENTS OF DEFAULT.......................................................   7
   -----------------
        7.1  Payment Default...............................................   7
        7.2  Covenant Default..............................................   7
        7.3  Material Adverse Change.......................................   8
        7.4  Insolvency....................................................   8
        7.5  Third Party Security Agreement................................   8
        7.6  Judgments.....................................................   8
        7.7  Misrepresentations............................................   8

8  BANK'S RIGHTS AND REMEDIES..............................................   8
   --------------------------
        8.1  Rights and Remedies...........................................   8
        8.2  Remedies Cumulative...........................................   8
        8.3  Demand Waiver.................................................   8

9  NOTICES.................................................................   9
   -------

10 CHOICE OF LAW, VENUE AND JURY TRIAL WAIVER..............................   9
   ------------------------------------------

                                       2

 
11 GENERAL PROVISIONS.............................   9
   ------------------
     11.1 Successors and Assigns..................   9
     11.2 Indemnification.........................   9
     11.3 Time of Essence.........................   9
     11.4 Severability of Provision...............   9
     11.5 Amendments in Writing, Integration......   9
     11.6 Counterparts............................  10
     11.7 Survival................................  10
     11.8 Confidentiality.........................  10

12 DEFINITIONS....................................  10
   -----------
     12.1 Definitions.............................  10

                                       3

 
      This LOAN AGREEMENT is dated September 24, 1997, between SILICON VALLEY 
BANK ("Bank"), whose address is 3003 Tasman Drive, Santa Clara, CA 95054 with a 
loan production office located at 18872 MacArthur Blvd, Ste. 100, Irvine, 
California 92612 and EYESYS TECHNOLOGIES, INC. ("Borrower"), whose address is 
2776 Bingle Road, Houston, Texas 77055 provides the terms on which Bank will 
lend to Borrower and Borrower will repay Bank. The parties agree as follows:

1.    ACCOUNTING AND OTHER TERMS
      --------------------------

      Accounting terms not defined in this Agreement will be construed following
GAAP Calculations and determinations must be made following GAAP. The term
"financial statements" includes the notes and schedules. The terms "including"
and "includes" always mean "including (or includes) without limitation," in this
or any Loan Document. This Agreement shall be construed to impart upon Bank a
duty to act reasonably at all times.

2     LOAN AND TERMS OF PAYMENT
      -------------------------

2.1   ADVANCES.

      Borrower will pay Bank the unpaid principal amount of all Advances and 
interest on the unpaid principal amount of the Advances.

2.1.1 REVOLVING ADVANCES.

      (a) Bank will make Advances not exceeding the Committed Revolving Line. 
Amounts borrowed under this Section may be repaid and reborrowed during the 
term of this Agreement.

      (b) To obtain an Advance, Borrower must notify Bank by facsimile or 
telephone by 3:00 p.m. Pacific time on the Business Day the Advance is to be 
made.  Borrower must promptly confirm the notification by delivering to Bank the
Payment/Advance Form attached as Exhibit A. Bank will credit Advances to 
Borrower's deposit account. Bank may make Advances under this Agreement based on
instructions from a Responsible Officer or his or her designee or without 
instructions if the Advances are necessary to meet Obligations which have become
due. Bank may rely on any telephone notice given by a person whom Bank believes 
is a Responsible Officer or designee. Borrower will indemnify Bank for any loss 
Bank suffers due to reliance.

      (c) The Committed Revolving Line terminates on the Revolving Maturity 
Date, when all Advances and other amounts due under this Agreement are 
immediately payable.

2.2   INTEREST RATE, PAYMENTS.

      (a) Interest Rate. Advances accrue interest on the outstanding principal
balance at a per annum rate equal to the Prime Rate. After an Event of Default
Obligations accrue interest at 5 percent above the rate effective immediately
before the Event of Default. The interest rate increases or decreases when the
Prime Rate changes. Interest is computed on a 360 day year for the actual
number of days elapsed.

      (b) Payments. Interest due on the Committed Revolving Line is payable on 
the 24th of each month. Bank may debit any of Borrower's deposit accounts 
including Account Number 360062970 for principal and interest payments or any 
amounts Borrower owes Bank. Bank will notify Borrower when it debits Borrower's 
Accounts. These debits are not a set-off. Payments received after 12:00 noon 
Pacific time are considered received at the opening of business on the next 
Business Day. When a payment is due on a day that is not a Business Day, the 
payment is due the next Business Day and additional fees or interest accrue.

                                       4



 
2.3  FEES. 

     Borrower will pay:

     (a) Facility Fee. A fully earned, non-refundable Facility Fee of $5,250 due
on the Closing Date: and

     (b) Bank Expenses. All Bank Expenses (including reasonable attorneys' fees 
and expenses) incurred through and after the date of this Agreement, are payable
when due.

3    CONDITIONS OF LOANS
     -------------------

3.1  CONDITIONS PRECEDENT TO INITIAL ADVANCE.

     Bank's obligation to make the initial Advance is subject to the condition
precedent that it receive the agreements, documents and fees it requires.

3.2  CONDITIONS PRECEDENT TO ALL ADVANCES.

     Bank's obligations to make each Advance, including the initial Advance, is 
subject to the following:

     (a) timely receipt of any Payment/Advance Form; and

     (b) the representations and warranties in Section 4 must be materially true
on the date of the Payment/Advance Form and on the effective date of each 
Advance and no Event of Default may have occurred and be continuing, or result 
from the Advance. Each Advance is Borrower's representation and warranty on that
date that the representations and warranties of Section 4 remain true.

4    REPRESENTATIONS AND WARRANTIES
     ------------------------------

     Borrower represents and warrants as follows:

4.1  DUE ORGANIZATION AND AUTHORIZATION.

     Borrower and each Subsidiary is duly existing and in good standing in its 
state of formation and qualified and licensed to do business in, and in good 
standing in, any state in which the conduct of its business or its ownership of 
property requires that it be qualified.

     The execution, delivery and performance of the Loan Documents have been 
duly authorized, and do not conflict with Borrower's formation documents, nor 
constitute an event of default under any material agreement by which Borrower is
bound. Borrower is not in default under any agreement to which or by which it is
bound in which the default could cause a Material Adverse Change.

4.2  LITIGATION.

     Except as shown in the Schedule, there are no actions or proceedings 
pending or, to Borrower's knowledge, threatened by or against Borrower or any 
Subsidiary in which an adverse decision could cause a Material Adverse Change.

4.3  NO MATERIAL ADVERSE CHANGE IN FINANCIAL STATEMENTS.

     All consolidated financial statements for Borrower, and any Subsidiary, 
delivered to Bank fairly present in all material respects Borrower's 
consolidated financial condition and Borrower's consolidated

                                       5

 
results of operations. There has not been any material deterioration in 
Borrower's consolidated financial condition since the date of the most recent 
financial statements submitted to Bank.

4.4  SOLVENCY.

     The fair salable value of Borrower's assets (including goodwill minus 
disposition costs) exceeds the fair value of its liabilities; the Borrower is 
not left with unreasonably small capital after the transactions in this 
Agreement; and Borrower is able to pay its debts (including trade debts) as they
mature.

4.5  REGULATORY COMPLIANCE.

     Borrower is not an "investment company" or a company "controlled" by an 
"investment company" under the Investment Company Act. Borrower is not engaged 
as one of its important activities in extending credit for margin stock (under 
Regulations G, T and U of the Federal Reserve Board of Governors). Borrower has 
complied with the Federal Fair Labor Standards Act. Borrower has not violated 
any laws, ordinances or rules, the violation of which could cause a Material 
Adverse Change. None of Borrower's or any Subsidiary's properties or assets has 
been used by Borrower or any Subsidiary or, to the best of Borrower's knowledge,
by previous Persons, in disposing, producing, storing, treating, or transporting
any hazardous substance other than legally. Borrower and each Subsidiary has 
timely filed all required tax returns and paid, or made adequate provision to 
pay, all taxes, except those being contested in good faith with adequate 
reserves under GAAP. Borrower and each Subsidiary has obtained all consents, 
approvals and authorizations of, made all declarations or filings with, and
given all notices to all government authorities that are necessary to continue
its business as currently conducted.

4.6  SUBSIDIARIES.

     Borrower does not own any stock, partnership interest or other equity 
securities.

4.7  FULL DISCLOSURE.

     No representation, warranty or other statement of Borrower in any 
certificate or written statement given to Bank contains any untrue statement of 
a material fact or omits to state a material fact necessary to make the 
statements contained in the certificates or statements misleading.

5.   AFFIRMATIVE COVENANTS
     ---------------------

     Borrower will do all of the following:

5.1  GOVERNMENT COMPLIANCE.

     Borrower will maintain its and all Subsidiaries' legal existence and good 
standing in its jurisdiction of formation and maintain qualification in each 
jurisdiction in which the failure to so qualify could have a material adverse 
effect on Borrower's business or operations. Borrower will comply, and have each
Subsidiary comply, with all laws, ordinances and regulations to which it is 
subject, noncompliance with which could have a material adverse effect on 
Borrower's business or operations or cause a Material Adverse Change.

5.2  TAXES. 

     Borrower will make, and cause each Subsidiary to make, timely payment of 
all material federal, state, and local taxes or assessments and will deliver to 
Bank, on demand, appropriate certificates attesting to the payment.

                                       6

 
5.3  INSURANCE.

     Borrower will keep its business insured for risks and in amounts, as Bank 
requests.

5.4  PRIMARY ACCOUNTS.

     Borrower will maintain its primary depository and operating accounts with 
Bank.

6.   NEGATIVE COVENANTS
     ------------------

     Borrower will not do any of the following:

6.1  CHANGES IN BUSINESS, OWNERSHIP, MANAGEMENT OR BUSINESS LOCATIONS.

     Engage in or permit any of its Subsidiaries to engage in any business other
than the businesses currently engaged in by Borrower or have a material change
in its ownership of greater than 25%. Borrower will not, without at least 30
days prior written notice, relocate its chief executive office or add any new
offices or business locations.

6.2  MERGERS OR ACQUISITIONS.

     (i) Merge or consolidate, or permit any of its Subsidiaries to merger or 
consolidate, with any other Person, or acquire, or permit any of its 
Subsidiaries to acquire, all or substantially all of the capital stock or 
property of another Person (except that Borrower may merge or consolidate or be 
acquired by Premier Laser Systems, Inc.) (ii) merge or consolidate a Subsidiary 
into another Subsidiary or into Borrower.

6.3  COMPLIANCE.

     Become an "investment company" or a company controlled by an "investment 
company," under the Investment Company Act of 1940 or undertake as one of its 
important activities extending credit to purchase or carry margin stock, or use 
the proceeds of any Advance for that purpose; fail to meet the minimum funding 
requirements of ERISA, permit a Reportable Event or Prohibited Transaction, as 
defined in ERISA, to occur; fail to comply with the Federal Fair Labor Standards
Act or violate any other law or regulation, if the violation could have a 
material adverse effect on Borrower's business or operations or cause a Material
Adverse Change, or permit any of its Subsidiaries to do so.

7.   EVENTS OF DEFAULT
     -----------------

     Any one of the following is an Event of Default:

7.1  PAYMENT DEFAULT.

     If Borrower fails to pay any of the Obligations:

7.2  COVENANT DEFAULT.

     If Borrower violates any covenant in Section 6 or does not perform or 
observe any other material term, condition or covenant in this Agreement, any 
Loan Documents, or in any agreement between Borrower and Bank and as to any 
default under a term, condition or covenant that can be cured, has not cured the
default within 10 days after it occurs, or if the default cannot be cured within
10 days or cannot be cured after Borrower's attempts within 10 day period, and 
the default may be cured within a reasonable time, then Borrower has an 
additional period (of not more than 30 days) to attempt to cure the default. 
During the additional time, the failure to cure the default is not an Event of 
Default (but no Advances will be made during the cure period):

                                       7

 
7.3  MATERIAL ADVANCE CHANGE.

     If the Bank determines, based upon information available to it and in the 
exercise of its reasonable judgment, that there is a reasonable likelihood that 
Borrower will fail to comply with one or more of the covenants set forth in 
Section 5 during the next succeeding financial reporting period.

7.4  INSOLVENCY.

     If Borrower becomes insolvent or if Borrower begins an Insolvency 
Proceeding or an Insolvency Proceeding is begun against Borrower and not 
dismissed or stayed within 30 days (but no Advances will be made before any 
Insolvency Proceeding is dismissed):

7.5  THIRD PARTY SECURITY AGREEMENT.
 
     If there occurs an Event of Default under the Third Party Security 
Agreement;

7.6  JUDGMENTS.

     If a money judgment(s) in the aggregate of at least $50,000 is rendered 
against Borrower and is unsatisfied and unstayed for 10 days (but no Advances 
will be made before the judgment is stayed or satisfied); or

7.7  MISREPRESENTATIONS.

     If Borrower or any Person acting for Borrower makes any material 
misrepresentation or material misstatement now or later in any warranty or 
representation in this Agreement or in any writing delivered to Bank or to 
induce Bank to enter this Agreement or any Loan Document.

8    BANK'S RIGHTS AND REMEDIES
     --------------------------

8.1  RIGHTS AND REMEDIES.

     When an Event of Default occurs and continues Bank may, without notice or 
demand, do any or all of the following:

     (a) Declare all Obligations immediately due and payable (but if an Event of
Default described in Section 7.4 occurs all Obligations are immediately due and 
payable without any action by Bank); and

     (b) Stop advancing money or extending credit for Borrower's benefit under 
this Agreement or under any other agreement between Borrower and Bank;

8.2  REMEDIES CUMULATIVE.

     Bank's rights and remedies under this Agreement, the Loan Documents, and 
all other agreements are cumulative. Bank has all rights and remedies provided 
by law, or in equity. Bank's exercise of one right or remedy is not an 
election, and Bank's waiver of any Event of Default is not a continuing waiver. 
Bank's delay is not a waiver, election, or acquiescence. No waiver is effective 
unless signed by Bank and then is only effective for the specific instance and 
purpose for which it was given.

8.3  DEMAND WAIVER.

     Borrower waives demand, notice of default or dishonor, notice of payment
and nonpayment, notice of any default, nonpayment at maturity, release,
compromise, settlement, extension, or renewal of

                                       8

 
accounts, documents, instruments, chattel paper, and guarantees held by Bank on 
which Borrower is liable.

9     NOTICES
      -------

      All notices or demands by any party about this Agreement or any other 
related agreement must be in writing and be personally delivered or sent by an 
overnight delivery service, by certified mail, postage prepaid, return receipt 
requested, or by telefacsimile to the addresses set forth at the beginning of 
this Agreement. A Party may change its notice address by giving the other Party 
written notice.

10    CHOICE OF LAW, VENUE AND JURY TRIAL WAIVER
      ------------------------------------------

      California law governs the Loan Documents without regard to principles of 
conflicts of law. Borrower and Bank each submit to the exclusive jurisdiction of
the State and Federal courts in Orange County, California.

BORROWER AND BANK EACH WAIVE THEIR RIGHT TO A JURY TRIAL OF ANY CLAIM OR CAUSE
OF ACTION ARISING OUT OF ANY OF THE LOAN DOCUMENTS OR ANY CONTEMPLATED
TRANSACTION, INCLUDING CONTRACT, TORT, BREACH OF DUTY AND ALL OTHER CLAIMS. THIS
WAIVER IS A MATERIAL INDUCEMENT FOR BOTH PARTIES TO ENTER INTO THIS AGREEMENT.
EACH PARTY HAS REVIEWED THIS WAIVER WITH ITS COUNSEL.

11    GENERAL PROVISIONS
      ------------------

11.1  SUCCESSORS AND ASSIGNS.

      This Agreement binds and is for the benefit of the successors and 
permitted assigns of each party. Borrower may not assign this Agreement or any 
rights under it without Bank's prior written consent which may be granted or 
withheld in Bank's discretion. Bank has the right, without the consent of or 
notice to Borrower, to sell, transfer, negotiate, or grant participation in all 
or any part of, or any interest in, Bank's obligations, rights and benefits 
under this Agreement.

11.2  INDEMNIFICATION

      Borrower will indemnify, defend and hold harmless Bank and its officers, 
employees, and agents against: (a) all obligations, demand, claims, and 
liabilities asserted by any other party in connection with the transactions 
contemplated by the Loan Documents; and (b) all losses or Bank Expenses 
incurred, or paid by Bank from, following, or consequential to transactions 
between Bank and Borrower (including reasonable attorneys fees and expenses), 
except for losses caused by Bank's gross negligence or willful misconduct.

11.3  TIME OF ESSENCE.

      Time is of the essence for the performance of all obligations in this 
Agreement.

11.4  SEVERABILITY OF PROVISION.

      Each provision of this Agreement is severable from every other provision
in determining the enforceability of any provision.

11.5  AMENDMENTS IN WRITING, INTEGRATION.

      All amendments to this Agreement must be in writing. This Agreement 
represents the entire agreement about this subject matter, and supersedes prior 
negotiations or agreements. All prior

                                       9

 
agreements, understandings, representations, warranties, and negotiations 
between the parties about the subject matter of this Agreement merge into this 
Agreement and the Loan Documents.

11.6  COUNTERPARTS.

      This Agreement may be executed in any number of counterparts and by 
different parties on separate counterparts, each of which, when executed and 
delivered, are an original, and all taken together, constitute one Agreement.

11.7  SURVIVAL.

      All covenants, representations and warranties made in this Agreement 
continue in full force while any Obligations remain outstanding. The obligations
of Borrower in Section 11.2 to indemnify Bank will survive until all statutes 
of limitations for actions that may be brought against Bank have run.

11.8  CONFIDENTIALITY.

      In handling any confidential information, Bank will exercise the same 
degree of care that it exercises for its own proprietary information, but 
disclosure of information may be made (i) to Bank's subsidiaries or affiliates 
in connection with their business with Borrower, (ii) to prospective transferees
or purchasers of any interest in the Loans, (iii) as required by law, 
regulation, subpoena, or other order, (iv) as required in connection with Bank's
examination or audit and (v) as Bank considers appropriate exercising remedies 
under this Agreement. Confidential information does not include information that
either: (a) is in the public domain or in Bank's possession when disclosed to 
Bank, or becomes part of the public domain after disclosure to Bank; or (b) is 
disclosed to Bank by a third party, if Bank does not know that the third party 
is prohibited from disclosing information.

12    DEFINITIONS
      -----------

      In this Agreement:

      "ADVANCE" or "ADVANCES" is a loan advance (or advances) under the 
Committed Revolving Line.

      "AFFILIATE" of a Person is a Person that owns or controls directly or 
indirectly the Person, any Person that controls or is controlled by or is under 
common control with the Person, and each of that Person's senior executive 
officers, directors, partners and, for any Person that is a limited liability 
company, that Person's managers and members.

      "BANK EXPENSES" are all audit fees and expenses and reasonable costs or 
expenses (including reasonable attorneys' fees and expenses) for preparing, 
negotiating, administering, defending and enforcing the Loan Documents 
(including reasonable attorneys' fees and expenses) for preparing, negotiating, 
administering, defending and enforcing the Loan Documents (including appeals or 
insolvency Proceedings).

      "BUSINESS DAY" is any day that is not a Saturday, Sunday or a day on which
the Bank is closed.

      "CLOSING DATE" is the date of this Agreement.

      "COLLATERAL" is the collateral defined in the Third Party Security 
Agreement.

      "COMMITTED REVOLVING LINE" is an Advance of up to $2,100,000.

      "CONTINGENT OBLIGATION" is, for any Person, any direct or indirect 
liability, contingent or not, of that Person for (i) any indebtedness, lease, 
dividend, letter of credit or other obligation of another such as 

                                      10

 
an obligation directly or indirectly guaranteed, endorsed, co-made, discounted
or sold with recourse by that Person, or for which that Person is directly or
indirectly liable; (ii) any obligations for undrawn letters of credit for the
account of that Person; and (iii) all obligations from any interest rate,
currency or commodity swap agreement, interest rate cap or collar agreement, or
other agreement or arrangement designated to protect a Person against
fluctuation in interest rates, currency exchange rates for commodity prices; but
"Contingent Obligation" does not include endorsements in the ordinary course of
business. The amount of a Contingent Obligation is the stated or determined
amount of the primary obligation for which the Contingent Obligation is made or,
if not determinable, the maximum reasonably anticipated liability for it
determined by the Person in good faith; but the amount may not exceed the
maximum of the obligations under the guarantee or other arrangement.

     "ERISA" is the Employment Retirement Income Security Act of 1974, and its 
regulations.

     "GAAP" is generally accepted accounting principles.

     "INDEBTEDNESS" is (a) indebtedness for borrowed money or the deferred price
of property or services, such as reimbursement and other obligations for surety 
bonds and letters of credit, (b) obligations evidenced by notes, bonds, 
debentures or similar instruments, (c) capital lease obligations and (d) 
Contingent Obligations.

      "INSOLVENCY PROCEEDING" are proceedings by or against any Person under the
United States Bankruptcy Code, or any other bankruptcy or insolvency law, 
including assignments for the benefit of creditors, compositions, extensions 
generally with its creditors, or proceedings seeking reorganization, 
arrangement, or other relief.

      "LOAN DOCUMENTS" are, collectively, this Agreement, the Third Party 
Security Agreement, any note, or notes or guaranties executed by Borrower, 
Pledgor or guarantor, and any other present or future agreement between Borrower
and/or for the benefit of Bank in connection with this Agreement, all as 
amended, extended or restated.

      "OBLIGATIONS" are debts, principal, interest, Bank Expenses and other 
amounts Borrower owes Bank now or later, including letters of credit and 
exchange contracts and including interest accruing after Insolvency Proceedings 
begin and debts, liabilities, or obligations of Borrower assigned to Bank.

      "PERSON" in any individual, sole proprietorship, partnership, limited 
liability company, joint venture, company association, trust, unincorporated 
organization, association, corporation, institution, public benefit corporation,
firm, joint stock company, estate, entity or government agency.

      "PLEDGOR" is Premier Laser Systems, Inc. as defined in Third Party 
Security Agreement.

      "PRIME RATE" is Bank's most recently announced "prime rate," even if it 
is not Bank's lowest rate.

      "RESPONSIBLE OFFICER" is each of the Chief Executive Officer, the 
President, the Chief Financial Officer and the Controller of Borrower.

      "REVOLVING MATURITY DATE" is September 24, 1998.

      "SCHEDULE" is any attached schedule of exceptions.

      "SUBSIDIARY" is for any Person, or any other business entity of which more
than 50% of the voting stock or other equity interests is owned or controlled, 
directly or indirectly, by the Person or one or more Affiliates of the Person.

                                      11

 
     "Third Party Security Agreement" is that Third Party Security Agreement of 
every date between Pledgor and Bank.


BORROWER:

EYESYS TECHNOLOGIES, INC.


By:  /s/ MICHAEL HIEBERT
   -----------------------------

Title:   CFO
      --------------------------


BANK:

SILICON VALLEY BANK


By:  /s/ ROBERT ANDERSON
   -----------------------------

Title:   AVP
      --------------------------


                                      12

 
                        CORPORATE BORROWING RESOLUTION

BORROWER:  EYESYS TECHNOLOGIES, INC.      BANK:  SILICON VALLEY BANK
           2776 BINGLE ROAD                      18872 MACARTHUR BLVD, STE. 100
           HOUSTON, TX 77055                     IRVINE, CA 92812

I, the undersigned Secretary or Assistant Secretary of EYESYS TECHNOLOGIES, INC.
("Borrower"), HEREBY CERTIFY that Borrower is a corporation duly organized and
existing under and by virtue of the laws of the State of Delaware.

I FURTHER CERTIFY that at a meeting of the Directors of Borrower (or by other 
duly authorized corporate action in lieu of a meeting), duly called and held, 
at which a quorum was present and voting, the following resolutions were 
adopted.

BE IT RESOLVED, that any one (1) of the following named officers, employees, or 
agents of Borrower, whose actual signatures are shown below:

       NAMES                     POSITIONS                ACTUAL SIGNATURES
       -----                     ---------                -----------------
 Michael Hiebert             Secretary and CFO         /s/ MICHAEL N. HIEBERT
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------


acting for and on behalf of Borrower and as its act and deed be, and they 
hereby are, authorized and empowered:

     Borrow Money. To borrow from time to time from Silicon Valley Bank
     ("Bank"), on such terms as may be agreed upon between the officers of
     Borrower and Bank, such sum or sums of money as in their judgment should be
     borrowed.

     Execute Loan Documents. To execute and deliver to Bank the loan documents
     of Borrower, on Bank's terms, at such rates of interest and on such terms
     as may be agreed upon, evidencing the sums of money so borrowed or any
     indebtedness of Borrower to Bank, and also to execute and deliver to Bank
     one or more renewals, extensions, modifications, refinancings,
     consolidations, or substitutions for one or more of the loan documents, or
     any portion of the loan documents.

     Grant Security. To grant a security interest to Bank in any of Borrower's
     assets, which security interest shall secure all of Borrower's obligations
     to Bank.

     Negotiate Items. To draw, endorse, and discount with Bank all drafts, trade
     acceptances, promissory notes, or other evidences of indebtedness payable
     to or belonging to Borrower or in which Borrower may have an interest, and
     other to receive cash for the same or to cause such proceeds to be credited
     to the account of Borrower with Bank, or to cause such other disposition of
     the proceeds derived therefrom as they may deem advisable.

     Letters of Credit. To execute letter of credit applications and other 
     related documents pertaining to Bank's issuance of letters of credit.

 
     Foreign Exchange Contracts. To execute and deliver foreign exchange
     contracts, either spot or forward, from time to time, in such amount
     as, in the judgment of the officer or officers herein authorized.

     Issue Warrants. To issue warrants to purchase Borrower's capital stock, for
     such class, series and number, and on such terms, as an officer of Borrower
     shall deem appropriate.

     Further Acts. In the case of lines of credit, to designate additional or
     alternate individuals as being authorized to request advances thereunder,
     and in all cases, to do and perform such other acts and things, to pay any
     and all fees and costs, and to execute and deliver such other documents and
     agreements, including agreements waiving the right to a trial by jury, as
     they may in their discretion deem reasonably necessary or proper in order
     to carry into effect the provisions of these Resolutions.

BE IT FURTHER RESOLVED, that any and all acts authorized pursuant to these 
Resolutions and performed prior to the passage of these resolutions are hereby 
ratified and approved, that these Resolutions shall remain in full force and 
effect and Bank may rely on these Resolutions until written notice of their 
revocation shall have been delivered to and received by Bank. Any such notice 
shall not affect any of Borrower's agreements or commitments in effect at the 
time notice is given.

I FURTHER CERTIFY that the persons named above are principal officers of the 
Corporation and occupy the positions set opposite their respective names; that 
the foregoing Resolutions now stand of record on the books of the Corporation; 
and that they are in full force and effect and have not been modified or revoked
in any manner whatsoever.

IN WITNESS WHEREOF, I have hereunto set my hand on September 24, 1997 and attest
that the signatures set opposite the names listed above are their genuine
signatures.

CERTIFIED TO AND ATTESTED BY:

x /s/ MICHAEL N. HEIBERT
  -------------------------------------
  Secretary or Assistant Secretary

x 
  -------------------------------------

*NOTE: In case the Secretary or other certifying officer is designated by the 
foregoing resolutions as one of the signing officers, this resolution should 
also be signed by a second Officer or Director of Borrower.


                                       2

 
                        THIRD PARTY SECURITY AGREEMENT



 
     This THIRD PARTY SECURITY AGREEMENT is entered into as of September 24,
1997, by and between SILICON VALLEY BANK ("Bank") and Premier Laser Systems,
Inc. ("Pledgor")

                                   RECITALS
                                   --------

     EYESYS TECHNOLOGIES, INC. ("Borrower") wishes to borrow money from time to
time from Bank pursuant to a Loan and Security Agreement of even date (the "Loan
Agreement"). Bank has agreed to enter into the Loan Agreement, provided Pledgor
secures the payment and performance obligations under the Loan Agreement in
accordance with the terms of this Agreement.

                                   AGREEMENT
                                   ---------

     The parties agree as follows:

     1.   CREATION OF SECURITY INTEREST
          -----------------------------
 
          1.1   Grant of Security Interest. Pledgor grants to Bank a continuing
                --------------------------
security interest in the property described in Exhibit A attached hereto (the
                                               ---------
"Collateral") in order to secure prompt repayment of any and all obligations and
in order to secure prompt performance by Borrower of each of its covenants and
duties under the Loan Agreement, as amended from time to time, and any other
agreements entered into between Bank and Borrower (the "Loan Documents"). Such
security interest constitutes a valid, first priority security interest in the
presently existing Collateral, and will constitute a valid, first priority
security interest in Collateral acquired after the date hereof. Borrower
acknowledges that Bank may place a hold on the deposit account pledged as
Collateral.

          1.2   Delivery of Additional Documentation Required. Pledgor shall 
                ---------------------------------------------
from time to time execute and deliver to Bank, documents that Bank may 
reasonably request, in form satisfactory to Bank, to perfect and continue 
perfected Bank's security interests in the Collateral and in order to fully 
consummate all of the transactions contemplated under the Loan Documents.

      2.   REPRESENTATIONS AND WARRANTIES
           ------------------------------

           Pledgor represents and warrants as follows:

           2.1   Due Organization and Qualification. Pledgor is a corporation 
                 ----------------------------------
duly existing and in good standing under the laws of its state of incorporation 
and qualified and licensed to do business in, and is in good standing in, any 
state in which the conduct of its business or its ownership of property  
requires that it be so qualified.

           2.2   Due Authorization; No Conflict. The execution, delivery, and 
                 ------------------------------
performance of this Agreement are within Pledgor's powers, have been duly 
authorized, and are not in conflict with nor constitute a breach of any 
provision contained in Pledgor's Articles of Incorporation or Bylaws, nor will 
they constitute an event of default under any material agreement to which 
Pledgor is a party or by which Pledgor is bound.

           2.3   No Prior Encumbrances. Pledgor has good and indefeasible title 
                 ---------------------
to the Collateral, free and clear of any liens, security interests, or other 
encumbrances.

      3.   AFFIRMATIVE COVENANTS
           ---------------------

           Pledgor covenants and agrees that, until payment in full of all
outstanding Obligations under the Loan Agreement and this Agreement, and for so
long as Bank may have any commitment to make an Advance under the Loan
Agreement, Pledgor shall do all of the following.

                                       1

 
          3.1  Good Standing. Pledgor shall maintain its corporate existence and
               -------------
its good standing in its jurisdiction of incorporation and maintain
qualification in each jurisdiction in which the failure to so qualify could have
a material adverse effect on Pledgor's business. Pledgor shall maintain in force
all licenses, approvals and agreements, the loss of which could have a material
adverse effect on Pledgor's business.

          3.2  Government Compliance. Pledgor shall comply with all statutes,
               ---------------------
laws, ordinances and government rules and regulations to which it is subject,
noncompliance with which could have a material adverse effect on Pledgor's
business.

     4.   NEGATIVE COVENANTS
          ------------------

          Pledgor covenants and agrees that until payment in full of all 
outstanding Obligations under the Loan Agreement and this Agreement, Pledgor 
will not do any of the following:

          4.1  Dispositions. Convey, sell, lease, transfer or otherwise dispose
               ------------
of (collectively, a "Transfer"), all or any part of the Collateral other than:
(i) Transfers in the ordinary course of business; (ii) Transfers of non-
exclusive licenses and similar arrangements for the use of the Collateral; or
(iii) Transfers of worn-out or obsolete Equipment.

          4.2  Change in Business Location. Without thirty (30) days prior 
               ---------------------------
written notification to Bank, relocate its chief executive office.

          4.3  Encumbrances. Create, incur, assume or suffer to exist any 
               ------------
security interest, lien or encumbrance with respect to the collateral.

     5.   EVENTS OF DEFAULT
          -----------------

          Any one or more of the following events shall constitute an Event of 
Default by Pledgor under this Agreement:

          5.1  Loan Documents. If an Event of Default occurs under any of the 
               --------------
Loan Documents;

          5.2  Covenant Default. If Pledgor fails or neglects to perform, keep, 
               ----------------
or observe any material term, provision, condition, covenant, or agreement 
contained in this Agreement.

          5.3  Attachment. If any portion of the Collateral is made the subject 
               ----------
of a lien, security interest or other encumbrance, or is attached, seized, 
subjected to a writ or distress warrant, or is levied upon, or comes into the 
possession of any trustee, receiver or person acting in a similar capacity and 
such attachment, seizure, writ or distress warrant or levy has not been removed,
discharged or rescinded within ten (10) days, or if Pledgor is enjoined, 
restrained, or in any way prevented by court order from continuing to conduct 
all or any material part of its business affairs.

          5.4  Misrepresentations. If any material misrepresentation or material
               ------------------
misstatement exists now or hereafter in any warranty or representation set forth
herein or in any certificate delivered to Bank by any Responsible Officer 
pursuant to this Agreement or to induce Bank to enter into this Agreement or any
other Loan Document.

     6.   BANK'S RIGHTS AND REMEDIES
          --------------------------

          6.1  Rights and Remedies. Upon the occurrence and during the 
               -------------------
continuance of an Event of Default, Bank may, at its election, without notice of
its election and without demand, do any one or more of the following, all of 
which are authorized by Pledgor:

               (a)  Exercise all rights available to it under the California 
Uniform Commercial Code and applicable law;

                                       2


                   (b)   Set off and apply to the obligations any and all (i)
balances and deposits of Pledgor held by Bank, or (ii) indebtedness at any time
owing to or for the credit or the account of Pledgor held by Bank; and

                   (c)   Sell the Collateral at either a public or private sale,
or both, by way of one or more contracts or transactions, for cash or on terms, 
in such manner and at such places (including Pledgor's premises) as Bank 
determines is commercially reasonable.

             6.2   Remedies Cumulative. Bank's rights and remedies under this 
                   -------------------
Agreement, the Loan Documents, and all other agreements shall be cumulative. 
Bank shall have all other rights and remedies not inconsistent herewith as 
provided under the Code, by law, or in equity. No exercise by Bank of one right 
or remedy shall be deemed an election, and no waiver by Bank of any Event of 
Default on Pledgor's part shall be deemed a continuing waiver. No delay by Bank 
shall constitute a waiver, election, or acquiescence by it.

             6.3   Demand; Protest. Pledgor waives demand, protest, notice of
                   ---------------
protest, notice of default or dishonor, notice of payment and nonpayment, notice
of any default, nonpayment at maturity, release, compromise, settlement,
extension, or renewal of accounts, documents, instruments, chattel paper, and
guarantees at any time held by Bank on which Pledgor may in any way be liable.

      7.     NOTICES
             -------

             Unless otherwise provided in this Agreement, all notices or demands
by any party relating to this Agreement or any other agreement entered into in 
connection herewith shall be in writing and (except for financial statements and
other informational documents which may be sent by first-class mail, postage 
prepaid) shall be personally delivered or sent by certified mail, postage 
prepaid, return receipt requested, or by prepaid telefacsimile to Pledgor or to 
Bank, as the case may be, as its addresses set forth below:

      If to Pledgor:         Premier Laser Systems, Inc.
                             3 Morgan
                             Irvine, CA 92618
                             Attn: 
                                  -------------------------
                             FAX: 
                                  -------------------------


      If to Bank:            Silicon Valley Bank
                             3003 Tasman Drive
                             Santa Clara, CA 95054
                             Attn: 
                                  -------------------------
                             FAX: 
                                  -------------------------


      The parties hereto may change the address at which they are to receive 
notices hereunder, by notice in writing in the foregoing manner given to the 
other.

      8.     CHOICE OF LAW AND VENUE; JURY TRIAL WAIVER
             ------------------------------------------

      This Agreement shall be governed by, and construed in accordance with, the
internal laws of the State of California, without regard to principles of 
conflicts of law.  Each of Pledgor and Bank hereby submits to the exclusive 
jurisdiction of the state and Federal courts located in the County of Orange, 
State of California. Pledgor AND BANK EACH HEREBY WAIVE THEIR RESPECTIVE RIGHTS 
TO A JURY TRIAL OF ANY CLAIM OR CAUSE OF ACTION BASED UPON OR ARISING OUT OF ANY
OF THE LOAN DOCUMENTS OR ANY OF THE TRANSACTIONS CONTEMPLATED THERIN, INCLUDING 
CONTRACT CLAIMS, TORT CLAIMS, BREACH OF DUTY CLAIMS, AND ALL OTHER COMMON LAW OR
STATUTORY CLAIMS. EACH PARTY RECOGNIZES AND AGREES THAT THE FOREGOING WAIVER 
CONSTITUTES A MATERIAL INDUCEMENT FOR IT TO ENTER INTO THIS AGREEMENT. EACH 
PARTY REPRESENTS AND WARRANTS THAT IT HAS

                                       3

 
REVIEWED THIS WAIVER WITH ITS LEGAL COUNSEL AND THAT IT KNOWINGLY AND 
VOLUNTARILY WAIVES ITS JURY TRIAL RIGHTS FOLLOWING CONSULTATION WITH LEGAL 
COUNSEL

     9.   GENERAL PROVISIONS
          ------------------

          9.1  Successors and Assigns. This Agreement shall bind and inure to 
               ----------------------
the benefit of the respective successors and permitted assigns of each of the 
parties; provided, however, that neither this Agreement nor any rights hereunder
         --------  -------
may be assigned by Pledgor without Bank's prior written consent, which consent 
may be granted or withheld in Bank's sole discretion. Bank shall have the right 
without the consent of or notice to Pledgor to sell, transfer, negotiate, or 
grant participations in all or any part of, or any interest in Bank's 
obligations, rights and benefits hereunder.

          9.2  Indemnification. Pledgor shall defend, indemnify and hold 
               ---------------
harmless Bank and its officers, employees, and agents against: (a) all 
obligations, demands, claims, and liabilities claimed or asserted by any other 
party in connection with the transactions contemplated by this Agreement; and 
(b) all losses or Bank Expenses in any way suffered, incurred, or paid by Bank 
as a result of or in any way arising out of, following, or consequential to 
transactions between Bank and Pledgor whether under this Agreement, or otherwise
(including without limitation reasonable attorneys fees and expenses), except 
for losses caused by Bank's gross negligence or willful misconduct.

          9.3  Time of Essence. Time is of the essence for the performance of 
               ---------------
all obligations set forth in this Agreement.

          9.4  Severability of Provisions. Each provision of this Agreement 
               --------------------------
shall be severable from every other provision of this Agreement for the purpose
of determining the legal enforceability of any specific provision.

          9.5  Amendments in Writing Integration. This Agreement cannot be 
               ---------------------------------
changed or terminated orally. All prior agreements, understandings, 
representations, warranties, and negotiations between the parties hereto with 
respect to the subject matter of this Agreement, if any, are merged into this 
Agreement and the Loan Documents.

          9.6  Counterparts. This Agreement may be executed in any number of 
               ------------
counterparts and by different parties on separate counterparts, each of which,
when executed and delivered, shall be deemed to be an original, and all of 
which, when taken together, shall constitute but one and the same Agreement.

          9.7  Survival. All covenants, representations and warranties made in 
               --------
this Agreement shall continue in full force and effect so long as any
Obligations remain outstanding. The obligations of Pledgor to indemnify Bank
with respect to the expenses, damages, losses, costs and liabilities described
in this Agreement shall survive until all applicable statute of limitations
periods with respect to actions that may be brought against Bank have run.

          9.8  Amendment of Loan Documents. Pledgor authorizes Bank, without 
               ---------------------------
notice or demand and without affecting its liability hereunder, from time to 
time to (a) renew, extend, or otherwise change the terms of the Loan Documents 
or any part thereof; (b) take and hold security for the payment of the Loan 
Documents, and exchange, enforce, waive and release any such security; and (c) 
apply such security and direct the order or manner of sale thereof as Bank in 
its sole discretion may determine.

          9.9  Pledgor Waivers. Pledgor waives any right to require Bank to (a)
               ---------------
proceed against Borrower, any other guarantor or any other person; (b) proceed 
against or exhaust any security held from Borrower; (c) marshal any assets of 
Borrower; or (d) pursue any other remedy in Bank's power whatsoever. Bank may, 
at its election, exercise or decline or fail to exercise any right or remedy it 
may have against Borrower or any security held by Bank, including without 
limitation the right to foreclose upon any such security by judicial or 
nonjudicial sale, without affecting or impairing in any way the liability of 
Pledgor hereunder. Pledgor waives any defense arising by reason of any 
disability or other defense of Borrower or by reason of the cessation from any 
cause whatsoever of the liability of Borrower. Pledgor waives any setoff, 
defense or counterclaim that Borrower may have against Bank. Pledgor waives any
defense arising out of the absence, impairment or loss of any right of 
reimbursement or subrogation or any other rights against Borrower. Pledgor shall
have no right of subrogation or reimbursement, contribution or other rights 
against Borrower, and Pledgor waives any right to enforce any remedy that Bank

                                       4

 
now has or may hereafter have against Borrower. Pledgor waives all rights to
participate in any security now or security now or hereafter held by Bank by
Bank. Pledgor waives all presentments, demands for performance, notices of
nonperformance, protests, notices of protest, notices of dishonor, and notices
of acceptance of this Pledge Agreement and of the existence, creation, or
incurring of new or additional indebtedness. Pledgor assumes the responsibility
for being and keeping itself informed of the financial condition of Borrower and
of all other circumstances bearing upon the risk of nonpayment of any
indebtedness or nonperformance of any obligation of Borrower, warrants to Bank
that it will keep so informed, and agrees that absent a request for particular
information by Pledgor, Bank shall have no duty to advise Pledgor of information
known to Bank regarding such condition or any such circumstances. Pledgor waives
the benefits of California Civil Code sections 2809, 2810, 2819, 2845, 2847,
2848, 2849, 2850, 2899, and 3433.

      9.10 Borrower Insolvency. If Borrower becomes insolvent or is adjudicated
           -------------------
bankrupt or files a petition for reorganization, arrangement, composition or
similar relief under any present or future provision of Unites States Bankruptcy
Code, or if such a petition is filed against Borrower, and in any such
proceeding some or all of any indebtedness or obligations under the Loan
Documents are terminated or rejected or any obligation of Borrower is modified
or abrogated, or if Borrower's obligations are otherwise avoided for
insolvency, bankruptcy or any similar reason, Pledgor agrees that Pledgor's
liability hereunder shall not thereby be affected or modified and such liability
shall continue in full force and effect as if no such action or proceeding had
occurred. This Agreement shall continue to be effective or be reinstated, as the
case may be, if any payment must be returned by Bank upon the insolvency,
bankruptcy or reorganization of Borrower, Pledgor, any other person, or
otherwise, as though such payment had not been made.

                                       5

 
      IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be 
executed as of the date first above written.


                             PLEDGOR:

                             PREMIER LASER SYSTEMS, INC.

                             BY:    /s/ MICHAEL HIEBERT
                                    ------------------------
                             Title: CFO
                                    ------------------------


                             By:  
                                    ------------------------
                             Title:    
                                    ------------------------



                             BANK:

                             SILICON VALLEY BANK

                             By:    /s/ ROBERT ANDERSON
                                    ------------------------
                             Title: AVP
                                    ------------------------

                                       6

 
     IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be 
executed as of the date first above written.



                                       PLEDGOR:

                                       PREMIER LASER SYSTEMS, INC.

                                       By:
                                          --------------------------
                                       Title:
                                             -----------------------
                                       
                                       By:   Colette Cozean
                                          --------------------------
                                       Title:  CEO
                                             -----------------------
                                       
                                       
                                       BANK:
                                       
                                       SILICON VALLEY BANK
                                       
                                       By:
                                          --------------------------
                                       Title:
                                             -----------------------

                                       6