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                                                                   EXHIBIT 10.28


                            ISV-205 LICENSE AGREEMENT


         This Agreement ("Agreement") is made this 28th day of May, 1996 by and
between InSite Vision Incorporated, a Delaware corporation, having offices at
965 Atlantic Avenue, Alameda, California 94501 ("InSite") and CIBA Vision
Ophthalmics, a division of CIBA Vision Corporation, a Delaware corporation,
  having offices at 11460 Johns Creek Parkway, Duluth, Georgia 30155 ("CVO").

         WHEREAS, InSite owns certain proprietary rights and know-how relating
to the manufacture, use and sale of the Compound and the Products (as defined
herein); and

         WHEREAS, CVO desires to acquire and InSite is willing to grant to CVO
certain rights with respect to such proprietary rights and know-how under the
terms and conditions set forth herein.

         NOW THEREFORE, in consideration of the mutual covenants and obligations
set forth herein, the parties agree as follows:

         1. DEFINITIONS

            The following terms as used in this Agreement shall have the meaning
set forth in this section.

            1.1   "Affiliate" shall mean all corporations or business entities
                  which directly or indirectly are controlled by, control or are
                  under common control with CVO or InSite as the case may be.

            1.2   "Agreement Period" shall mean the period commencing upon the
                  Effective Date and extending until the expiration or
                  termination of this Agreement pursuant to Section 17 hereof.

            1.3   "Compound" shall mean the compound known as ISV-205, which is
                  diclofenac sodium suspended in InSite's DuraSite(R)polymer
                  vehicle covered by the claims of * * *, including all
                  continuations in part, divisionals, reissuances and the like
                  of the foregoing patent application. [* INDICATES THAT
                  MATERIAL HAS BEEN OMITTED AND CONFIDENTIAL TREATMENT HAS BEEN
                  REQUESTED THEREFOR. ALL SUCH OMITTED MATERIAL HAS BEEN FILED
                  SEPARATELY WITH THE COMMISSION PURSUANT TO RULE 24b-2.]

            1.4   "CVO Data" shall mean any toxological, pre-clinical, or
                  clinical data contained in CVO's IND or NDA for Voltaren
                  Ophthalmic(R) sterile ophthalmic solution which is not in the
                  public domain and which may not be used or referenced absent a
                  license from CVO.

            
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            1.5   "DuraSite(R) means any polymer suspension drug delivery
                  vehicle which is covered by the claims of * * *, including all
                  continuations in part, divisionals, reissuances and the like
                  of the foregoing patent. [* INDICATES THAT MATERIAL HAS BEEN
                  OMITTED AND CONFIDENTIAL TREATMENT HAS BEEN REQUESTED
                  THEREFOR. ALL SUCH OMITTED MATERIAL HAS BEEN FILED SEPARATELY
                  WITH THE COMMISSION PURSUANT TO RULE 24b-2.]

            1.6   "Effective Date" shall mean the date first above written.

            1.7   "FDA" shall mean the United States Food and Drug
                  Administration or any successor entity thereto.

            1.8   "FDCA" shall mean the United States Food, Drug and Cosmetic
                  Act and the regulations promulgated thereunder.

            1.9   "Glaucoma Product" shall mean an ophthalmic formulation
                  containing the Compound which is indicated for the treatment
                  of glaucoma, or for lowering intraocular pressure or the
                  prevention of a rise in intraocular pressure after a steroid
                  challenge.

            1.10  "IND" shall mean an Investigational New Drug Application as
                  defined in the FDCA.

            1.11  "Know-How" shall mean all technology, formula, trade secrets,
                  technical data, pre-clinical and clinical data, toxicological
                  and pharmacological data and any other information or
                  experience owned, controlled or in the possession of or used
                  by Insite in the development, manufacture, use or sale of the
                  Compound, the Glaucoma Product, the SAC Product, or Other
                  Products (all as defined herein) as well as any improvements
                  or modifications to the know-how developed by, or by any third
                  party for, InSite during the Agreement Period.

            1.12  "NDA" shall mean a New Drug Application as defined in the
                  FDCA.

            1.13  "Net Sales" shall mean the amount invoiced by a party hereto,
                  its affiliates and sub-licensees to independent third parties
                  for the sale of the Products (as defined herein) less cash
                  discounts and/or quantity discounts actually allowed; credit
                  for customer returns and allowances; charges for freight,
                  handling and transportation which are separately billed to
                  such party and sales and use taxes and other similar taxes
                  incurred by such party. Net Sales shall not include the value
                  of product samples or clinical trial supplies.

            1.14  "1984 Act" shall mean the United States Drug Price Competition
                  and Patent Term Restoration Ac USC Section 355, 35
                             
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                  USC Section 155-156, 35 USC Section 271 and the regulations
                  promulgated thereunder.

            1.15  "Novel Preservative" shall mean a new proprietary preservative
                  system developed by either party * * * [* INDICATES THAT
                  MATERIAL HAS BEEN OMITTED AND CONFIDENTIAL TREATMENT HAS BEEN
                  REQUESTED THEREFOR. ALL SUCH OMITTED MATERIAL HAS BEEN FILED
                  SEPARATELY WITH THE COMMISSION PURSUANT TO RULE 24b-2.]

            1.16  "Other Products" shall mean those products containing the
                  Compound, the primary indications for which are the treatment
                  of inflammation, pain, or photophobia (light sensitivity).

            1.17  "Patent Rights" shall mean all of InSite's right, title and
                  interest in and to any patent or patent applications in the
                  Territory (as herein defined), any claim of which would cover
                  the Compound, the Products or their manufacture, use, sale,
                  offer for sale or import including, but not limited, to those
                  listed in Appendix A attached hereto, and any continuations,
                  continuations in part, divisions, re-examinations, re-issues
                  or extensions of any of the above described patents or patent
                  applications as of the date of this Agreement or arising
                  during the Agreement Period.

            1.18  "Products" shall mean collectively the Glaucoma Product, the
                  SAC Product, and Other Products.

            1.19  "SAC Product" shall mean an ophthalmic formulation containing
                  the Compound, the primary indication for which is the
                  treatment of seasonal allergic conjunctivitis, or other forms
                  of ocular allergies.

            1.20  "Territory" shall mean the United States of America, including
                  its territories and possessions.


         2. GRANT

            2.1   InSite hereby grants to CVO during the Agreement Period an
                  exclusive license subject to all the terms and conditions of
                  this Agreement and to InSite's rights under Section 2.3
                  hereof, under the Patent Rights and with the right to
                  sub-license, to develop, make, have made, use and sell the SAC
                  Product and the Other Products in the Territory and to develop
                  and manufacture or have manufactured the SAC Product and Other
                  Products outside the Territory solely for sale and use within
                  the Territory and for no other purpose.

            2.2   In addition to the rights granted in Section 2.1, and without
                  any limitation 


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                  thereof, InSite hereby grants to CVO during the Agreement
                  Period an exclusive license subject to all the terms and
                  conditions of this Agreement and to Section 2.4 hereof with
                  the right to sub-license, to practice the Know-How in the
                  Territory and outside the Territory solely to develop and
                  manufacture or have manufactured the SAC Product and the Other
                  Products for use and sale in the Territory.

            2.3   InSite hereby reserves for itself (i) all rights under the
                  Patent Rights or the Know-How to manufacture, have
                  manufactured, use and sell all products other than the SAC
                  Product and the Other Products in the Territory; and (ii) the
                  right, without the right to further license or sub-license,
                  under the Patent Rights and Know-How to manufacture, have
                  manufactured, use and sell the SAC Product and the Other
                  Products in the Territory. The rights of InSite reserved in
                  clause (ii) above of this Section 2.3 shall not in any way be
                  assigned or transferred to any third party; provided however
                  that such rights may be assigned without CVO's consent in a
                  merger, reorganization or sale of all or substantially all of
                  InSite's assets or a transaction whereby control of InSite
                  changes to InSite's successor in interest in such transaction;
                  provided further that, upon the occurrence of any such
                  transaction, if InSite is not then marketing such product,
                  then InSite or its successor in interest shall not have the
                  right to sell the SAC Product or Other Products in the
                  Territory until the end of 36 months following the date of the
                  CVO's first commercial sale of the applicable Product in the
                  Territory (or, if there has been no commercial sale of the
                  applicable Product in the Territory during the first year
                  following the date of any FDA or similar registration for sale
                  of such Product in such country in the Territory ("Product
                  Approval"), then 48 months after Product Approval).

            2.4   In the event CVO elects not to commercialize the SAC Product
                  or Other Product, then upon ninety (90) days prior written
                  notice from InSite, the exclusive right and license granted to
                  CVO under Sections 2.1 and 2.2 with respect to such SAC
                  Product and/or Other Product shall terminate and shall revert
                  to InSite, provided that such rights shall not be assigned or
                  transferred to any third party, whether by way of license,
                  merger, reorganization or sale of all or substantially all of
                  InSite's assets, for a period of 24 months following CVO's
                  election not to pursue commercialization or to cease marketing
                  such Product. Following such 24 month period, Insite may
                  assign or transfer such rights without CVO's consent. In the
                  event that CVO has not (i) initiated clinical studies of at
                  least one SAC Product or Other Product within three (3) years
                  after the Effective Date; or (ii) filed for FDA approval for
                  such SAC Product or Other Product within four (4) years after
                  initiation of clinical trials of such product, or (iii)
                  commercialized such SAC Product or Other Product within one
                  (1) year after FDA approval therefor whether such approval was
                  obtained by CVO or by InSite (if InSite thereafter transferred
                  commercialization to CVO) and CVO is marketing a product
                  competitive with either the SAC 


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                  Product or Other Product, then CVO's exclusive right and
                  license under Sections 2.1 and 2.2 with respect to such SAC
                  Product and/or Other Product shall immediately terminate and
                  revert to InSite, unless CVO can in good faith show that its
                  inability to meet the foregoing timelines was beyond its
                  reasonable control. CVO shall be deemed to have elected not to
                  commercialize the SAC Product or Other Product if CVO fails to
                  use such level of efforts, in accordance with CVO's business,
                  legal, medical and scientific judgment and CVO's normal
                  practices and procedures, to continue the development of the
                  SAC Product or Other Product pursuant to this Agreement
                  through pre-clinical and clinical studies and other
                  registration directed activities with the FDA or other
                  corresponding federal or state government agencies.

            2.5   Unless this Agreement is terminated for cause by InSite under
                  Section 17.2 or by CVO under Section 17.3, at the end of the
                  Agreement Period, CVO shall have the unrestricted perpetual
                  right to practice the Know-How free of charge, to manufacture,
                  have manufactured and use such Agreement Product anywhere in
                  the world and to sell such Agreement Product in the Territory.

         3. DEVELOPMENT

            3.1   InSite shall use commercially reasonable efforts to conduct
                  the development work for the Products. It is understood by the
                  parties that the formulations of the SAC Product, the Other
                  Products and the Glaucoma Product may be identical, or there
                  may be different formulations for the different Products.

            3.2   In the event InSite elects not to complete the initial
                  development of either the SAC Product or any of the Other
                  Products, CVO shall be entitled to proceed with the
                  development of such Product(s) as InSite has abandoned and
                  InSite will make available, subject to the terms of the
                  license granted in Section 2.2 above, to CVO at the time of
                  InSite's election, all of its Know-How relating only to the
                  development of the Product(s) that InSite elects not to
                  proceed with. CVO shall have the right to reference relevant
                  data in InSite submissions on the Glaucoma Product in order to
                  conduct the development of the SAC or Other Products. InSite
                  shall make such election within one year of the Effective
                  Date. InSite shall be deemed to have elected not to complete
                  development of the SAC Product or any of the Other Product if
                  InSite fails to use such level of efforts, in accordance with
                  InSite's business, legal, medical and scientific judgment and
                  InSite's normal practices and procedures, to continue the
                  development of such SAC Product or such Other Product pursuant
                  to this Agreement through pre-clinical and clinical studies
                  and other registration directed activities with the FDA or
                  other corresponding federal or state government agencies.

            3.3   With respect to its submissions to the FDA for any of the
                  Products, InSite shall 



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                  be entitled, but not obligated, to reference the CVO Data. In
                  Data. In the event InSite elects to reference CVO Data, CVO
                  will cooperate and provide any and all documentation necessary
                  to permit InSite to reference and include such data in its own
                  filings.

            3.4   Each party will, upon request, make available to the other,
                  under a secrecy agreement, such know-how relating to such
                  party's Novel Preservative systems as shall be necessary to
                  allow the requesting party to incorporate such Novel
                  Preservative for use in the Products.

         4. ROYALTIES

            4.1   In consideration of the rights granted in Section 2 hereof,
                  CVO shall pay InSite the royalties set forth in this Section 
                  4. In consideration of, and in the event InSite exercises, the
                  right to reference CVO Data set forth in Section 3.3 hereof,
                  InSite shall pay CVO the royalties set forth in this Section 
                  4.

            4.2   In the event InSite completes the development of the SAC
                  Product or Other Product using a different formulation than
                  the Glaucoma Product, and obtains approval for the NDA
                  therefor, CVO shall pay InSite a royalty * * * of CVO Net
                  Sales of the applicable Product until the later to occur (i)
                  ten (10) years after the date of first commercial sale of such
                  Product; or (ii) until the expiration of the last to expire
                  patent in the Patent Rights ("CVO Royalty Period").
                  Notwithstanding the foregoing, in the event InSite chooses to
                  reference the CVO Data in its regulatory filings, and InSite
                  obtains approval for an NDA for the SAC Product or Other
                  Product, CVO shall pay InSite a royalty * * * of CVO's Net
                  Sales of the applicable Product during the CVO Royalty Period.
                  [* INDICATES THAT MATERIAL HAS BEEN OMITTED AND CONFIDENTIAL
                  TREATMENT HAS BEEN REQUESTED THEREFOR. ALL SUCH OMITTED
                  MATERIAL HAS BEEN FILED SEPARATELY WITH THE COMMISSION
                  PURSUANT TO RULE 24b-2.]

            4.3   On the other hand, in the event InSite completes the
                  development of the SAC Product or Other Product and the
                  formulation for any such Product is sufficiently similar to
                  the formulation for the Glaucoma Product as to legally allow
                  prescription substitution of one product by the other, CVO
                  shall pay to InSite a royalty * * * of CVO's Net Sales of such
                  Product if InSite has referenced the CVO Data in obtaining
                  approval of the NDA therefor, or * * * of such Net Sales if
                  InSite has not referenced CVO Data in obtaining approval of
                  the NDA therefor. [* INDICATES THAT MATERIAL HAS BEEN OMITTED
                  AND CONFIDENTIAL TREATMENT HAS BEEN REQUESTED THEREFOR. ALL
                  SUCH OMITTED MATERIAL HAS BEEN FILED SEPARATELY WITH THE
                  COMMISSION PURSUANT TO RULE 24b-2.] 

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            4.4   (a) In the event InSite elects not to complete the development
                      of the SAC Product or Other Product, and CVO completes
                      such development and obtains an approval for the NDA
                      therefor, and such Product has a different formulation
                      from and cannot be legally substituted for the Glaucoma
                      Product, CVO shall pay the following royalties depending
                      on the stage at which InSite has stopped development of
                      the applicable Product:

                        Prior to Commencement of Phase II                    *
                        Prior to Commencement of Phase III                   *
                        After Commencement of Phase III                      *

                      [* INDICATES THAT MATERIAL HAS BEEN OMITTED AND
                      CONFIDENTIAL TREATMENT HAS BEEN REQUESTED THEREFOR. ALL
                      SUCH OMITTED MATERIAL HAS BEEN FILED SEPARATELY WITH THE
                      COMMISSION PURSUANT TO RULE 24b-2.]

                      For purposes of this Agreement, "Phase II" and "Phase III"
                      shall have the meaning given them in the United Stated
                      Food and Drug Act and any rules or regulations promulgated
                      thereunder.

            (b)       Nothwithstanding the foregoing, if after InSite has
                      initiated but not completed Phase III, CVO completes the
                      development of the SAC Product or Other Product, and such
                      Product can be legally substituted for the Glaucoma
                      Product, then the royalty rate payable to CVO for such
                      Product shall be * * * spent by CVO in development costs
                      for such Product down to a minimum rate of * * * [*
                      INDICATES THAT MATERIAL HAS BEEN OMITTED AND CONFIDENTIAL
                      TREATMENT HAS BEEN REQUESTED THEREFOR. ALL SUCH OMITTED
                      MATERIAL HAS BEEN FILED SEPARATELY WITH THE COMMISSION
                      PURSUANT TO RULE 24b-2.].

            4.5   In the event InSite has referenced CVO Data in obtaining
                  approval of the NDA for the Glaucoma Product, whether or not
                  such Product is the same formulation as the SAC or Other
                  Products, InSite shall pay CVO a royalty of * * * InSite's Net
                  Sales of the Glaucoma Product until the expiration of the last
                  to expire of the patents covering Voltaren Ophthalmic. [*
                  INDICATES THAT MATERIAL HAS BEEN OMITTED AND CONFIDENTIAL
                  TREATMENT HAS BEEN REQUESTED THEREFOR. ALL SUCH OMITTED
                  MATERIAL HAS BEEN FILED SEPARATELY WITH THE COMMISSION
                  PURSUANT TO RULE 24b-2.]

            4.6   The royalties payable by CVO to InSite in Section 4.2, 4.3 and
                  4.4 hereof, shall 


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                  be adjusted by adding an additional * * * of Net Sales to the
                  otherwise applicable royalty rate if the SAC Product or Other
                  Product is formulated with an InSite Novel Preservative. Such
                  royalties shall be reduced by * * * if the applicable Product
                  is formulated and developed with a CVO Novel Preservative, * *
                  * and by * * *, if formulated and developed with both a CVO
                  Novel Preservative and CVO's novel * * * replacement provided
                  these formulations are not covered by any patent issuing from
                  * * *. It is agreed and understood that the parties will have
                  to mutually agree on the best formulation for such product
                  with respect to preservative, based on the most desirable
                  product and the ability to expedite development of the
                  product. InSite shall pay to CVO a royalty of * * * of
                  InSite's Net Sales of the Glaucoma Product if InSite utilizes
                  CVO's Novel Preservative in the Glaucoma Product, * * * if the
                  Glaucoma Product utilizes CVO's novel * * * replacement and *
                  * * if the Glaucoma Product is formulated and developed with
                  both a CVO Novel Preservative and CVO's novel * * *
                  replacement, provided these formulations are not covered by
                  any patent issuing from * * *. Such additional royalties shall
                  be paid by InSite until the expiration of the last patent
                  covering such preservative. [* INDICATES THAT MATERIAL HAS
                  BEEN OMITTED AND CONFIDENTIAL TREATMENT HAS BEEN REQUESTED
                  THEREFOR. ALL SUCH OMITTED MATERIAL HAS BEEN FILED SEPARATELY
                  WITH THE COMMISSION PURSUANT TO RULE 24b-2.]

         5. TIMING OF ROYALTY PAYMENTS; RECORDS

            5.1   Within forty-five (45) days after the end of each calendar
                  quarter, CVO shall pay to InSite and InSite shall pay to CVO
                  the royalty payments due, if any, for that quarter in U.S.
                  dollars.

            5.2   Together with each quarterly royalty payment, the party paying
                  the royalty shall submit to the other a written accounting
                  showing its computation of royalties due under this Agreement
                  for such quarter. Said accounting shall set forth gross sales,
                  Net Sales, and the total royalties due for the quarter in
                  question.

            5.3   Each party shall keep full and accurate books and records
                  reflecting its sales of the Products and the data used in
                  arriving at Net Sales and the amount of royalties payable to
                  the other party hereunder for no less than one (1) year after
                  the end of each such quarter. Each party shall permit the
                  other, at the other party's expense, to have such books and
                  records examined by independent certified public accountants
                  retained by the other party and acceptable to such party,
                  during regular business hours upon reasonable advance notice,
                  but not later than one (1) year following the rendering of any
                  such reports, accounting and payments, and no more often than
                  one (1) time per year. Such independent accountants shall keep
                  confidential any information obtained 


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                  during such examination and shall report to the party who
                  retained each accountant only the amounts of royalties which
                  the independent accountant believes to be due and payable
                  hereunder. If errors of ten percent (10%) or more in the
                  auditing party's favor are discovered as a result of such
                  examination, the audited party shall reimburse the auditing
                  party for the expense of such examination and pay the
                  deficiency immediately.

         6. WARRANTIES

                  6.1 InSite warrants and represents that:

                      (a) it is the owner or licensee with the right of
                          sublicense of the Patent Rights and Know-How and has
                          the right to license said Patent Rights and Know-How
                          free of any lien or encumbrance in the Territory in
                          the manner set forth in this Agreement;

                      (b) it has not assigned or conveyed any interest in the
                          Patent Rights or Know-How which may be inconsistent
                          with the rights granted hereunder; and

                      (c) it is a corporation duly incorporated and in good
                          standing in its state of incorporation and has all
                          requisite power to enter into and perform this
                          Agreement. Upon execution by the parties hereto, this
                          Agreement shall constitute a valid and legally binding
                          obligation of InSite, enforceable in accordance with
                          its terms.

                  6.2 CVO warrants and represents that:

                      (a) it is the owner of the CVO Data and has the right to
                          grant a right of reference to such Data as set forth
                          herein.

                      (b) it is a corporation duly incorporated and in good
                          standing in its state of incorporation and has all
                          requisite power to enter into and perform this
                          Agreement. Upon execution by the parties hereto, this
                          Agreement shall constitute a valid and legally binding
                          obligation of CVO enforceable in accordance with its
                          terms.


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         7. TRANSFER AND OWNERSHIP OF KNOW-HOW

                  7.1     As part of the license granted in Section 2.1 and 2.2,
                          and in order to enable CVO to develop, make, have
                          made, use and sell the SAC Product and the Other
                          Products, InSite shall either (i) make available to
                          CVO all Know-How related to the development of such
                          SAC Product or Other Products at the time that InSite
                          elects not to complete the development of such Product
                          and to turn the development of such Product over to
                          CVO, or (ii) make available to CVO all Know-How
                          related to marketing of such SAC Product or Other
                          Products at the time CVO launches such Product(s). All
                          Know-How related to the development and/or marketing
                          of the SAC Product or Other Products generated or
                          obtained by InSite during the Agreement Period shall
                          be made available to CVO within thirty (30) days of
                          its generation or receipt by InSite; provided,
                          however, InSite shall have no obligation to make
                          available any Know-How to CVO prior to InSite's
                          election not to complete development of the SAC
                          Product or one of the Other Products. All Know-How
                          provided to CVO shall be deemed confidential
                          information and shall be subject to the
                          confidentiality restrictions set forth in this
                          Agreement.

                  7.2     In the event CVO takes over the development of the SAC
                          or Other Products, InSite shall assign to CVO the IND
                          for such Product and the data contained therein, and
                          all pre-clinical data and regulatory submissions for
                          such Product, but InSite shall retain rights to use
                          any data contained in the IND for such Product and any
                          pre-clinical data and the right to access the same
                          subject to the terms of this Agreement. CVO shall own
                          all subsequent regulatory submissions for such
                          Product, including the NDA therefor and the data
                          contained therein, subject to InSite's rights to
                          access the same. InSite shall be authorized to
                          reference such submissions with respect to its other
                          products and in the event it wishes to manufacture or
                          market such Products pursuant to Section 2.3 hereof.

         8. CONFIDENTIALITY

                  8.1     InSite and CVO shall keep any Know-How or business
                          information provided or made available by the other
                          party or its Affiliates hereunder confidential, and
                          neither InSite nor CVO shall, without the prior
                          written consent of the other party or its Affiliates,
                          as the case may be, use (except as expressly permitted
                          by this Agreement), or disclose to any third party,
                          any Know-How or business information provided or made
                          available by the other party or its Affiliates
                          hereunder; provided, however, that the foregoing shall
                          not apply to information which the party receiving
                          such information can establish by written
                          documentation to (i) have been publicly known at the
                          time of disclosure by the other party or its
                          Affiliates, as the case may be, (ii) have become
                          publicly known, without fault on its part, subsequent
                          to such disclosure, (iii) have been 


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                          otherwise known by it from a source (other than the
                          other party or its agents or Affiliates), lawfully
                          having possession of and the right to disclose such
                          information, or (iv) have been developed by it or its
                          Affiliates independently of the disclosure by the
                          other party or its Affiliates without use of the other
                          party's Confidential Information.

                          The foregoing shall not preclude the disclosure of
                          information by InSite or CVO:

                          (a)     to its legal representatives, Affiliates,
                                  consultants, outside contractors and (if it
                                  has the right to grant the license or
                                  sublicense) its licensees and sublicensees,
                                  under like written confidentiality obligations
                                  on the part of the recipients, or

                          (b)     to the extent required by law or regulation,
                                  provided that, to the extent reasonably
                                  possible, it shall give prompt written notice
                                  of the proposed disclosure to the other party
                                  or its Affiliates, as the case may be, to
                                  allow the other party or its Affiliates, as
                                  the case may be, an opportunity to object to
                                  such requirement and, if applicable, assure
                                  that confidential treatment will be accorded
                                  to such information, or

                          (c)     to the extent that such information is
                                  reasonably required to be disclosed for the
                                  purpose of securing necessary governmental
                                  authorization for the clinical testing or
                                  marketing of Products, or for the purpose of
                                  conducting clinical testing or marketing of
                                  Products, or of prosecuting or defending
                                  litigation.

                  8.2     The terms of this Agreement shall not be disclosed by
                          either party to any third party (other than as
                          provided in Sub-sections 8.1(a), (b) and (c) or be
                          published unless both parties expressly agree
                          otherwise in writing. Furthermore, neither party shall
                          use the name of the other party or its Affiliates for
                          commercial purposes without their prior written
                          consent. However, all of the foregoing restrictions
                          shall not apply to the disclosure of information set
                          forth in the form of an agreed upon press release, if
                          any, which may be prepared in mutually agreeable
                          format and substance for release when this Agreement
                          becomes effective, or to disclosures required by law
                          or regulation including, without limitation, SEC
                          reporting requirements or FDA documentation relating
                          to Products.


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         9. PATENTS

                  9.1     CVO acknowledges and agrees that the Regents of the
                          University of California (the "Regents") is solely
                          responsible for the prosecution and maintenance of the
                          Patent Rights in the Territory at InSite's expense.
                          InSite agrees that it will continue to meet its
                          reimbursement obligations to the Regents.

         10. INFRINGEMENT OF PATENT RIGHTS

                  10.1    If either party shall become aware of any infringement
                          or threatened infringement of any Patent Rights,
                          including that contained in a notice provided under
                          the 1984 Act by a party filing an ANDA or Paper NDA
                          for any of the Products, then the party having such
                          knowledge shall give notice to the other within ten
                          (10) days of becoming aware of such infringement or
                          threatened infringement.

                  10.2    InSite shall have the right to take such action, as it
                          deems appropriate, whether by action, suit, proceeding
                          or otherwise, at its own expense to prevent or
                          eliminate, the infringement of Patent Rights by others
                          and to collect damages. CVO agrees to cooperate with
                          InSite in any reasonable manner including, but not
                          limited to, being named as a co-plaintiff in an action
                          brought by InSite. InSite agrees to pay all reasonable
                          out-of-pocket expenses (other than legal fees)
                          incurred by CVO at the request of Insite, in the
                          prosecution of any such action, suit or proceeding for
                          infringement. Except for an action brought by the
                          Regents, either alone or jointly with InSite, any
                          damages recovered by the party bringing the action for
                          patent infringement shall be used first to compensate
                          that party for its out-of-pocket expenses in the
                          prosecution of any such action, suit or proceeding for
                          infringement and any remaining damages recovered by
                          that party shall be apportioned between InSite and CVO
                          in proportion to the damage incurred by each party
                          determined in such action, suit or proceeding as a
                          result of the infringement.

                  10.3    In the event of any substantial and adverse
                          infringement (defined as having a material effect on
                          the sales or future sales of any of the Products), if
                          an action for patent infringement is not initiated by
                          InSite pursuant to Section 10.2 or by the Regents,
                          either alone or jointly with InSite, to prevent or
                          eliminate the infringement of Patent Rights within
                          ninety (90) days of receipt of notice of the
                          infringement or threatened infringement thereof (or
                          within thirty (30) days in the event such infringement
                          is by notice under the 1984 Act) then within said
                          ninety (90) days (or thirty (30) days, if applicable),
                          CVO may, at its option, give notice to InSite that
                          unless InSite undertakes such action, CVO shall
                          commence an action to terminate such infringement. If
                          InSite fails to take such action within said ninety
                          (90) days then CVO shall have the right to take such
                          action, at its own expense, as it deems appropriate
                          against any infringer of 

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                          same. Such action by CVO may be undertaken in the name
                          of InSite, if necessary, and InSite agrees to
                          cooperate with CVO, and execute any necessary
                          documents relating to such action. In the event the
                          parties fail to bring such action to prevent or
                          eliminate the infringement of Patent Rights within one
                          hundred eighty (180) days of receipt of notice and
                          unless InSite believes, based upon an opinion of its
                          counsel, that the activity in question does not
                          infringe the Patent Rights, CVO's obligation to pay
                          patent royalties under Section 3 hereof shall be
                          abated, only with respect to the specific Products
                          claimed by the Patent Rights being infringed, until
                          such time as InSite shall obtain discontinuance of
                          such infringement.

                          At any time after commencement of any such
                          infringement action by CVO, InSite shall have the
                          right to become a party plaintiff in such action, and
                          InSite shall have the right to assume the prosecution,
                          conduct and control of such action at InSite's
                          expense. Any recoveries in an action commenced by CVO
                          shall be apportioned as specified by Section 10.2

         11. THIRD PARTY RIGHTS

                  11.1    If either party shall become aware of any action, or
                          suit, or threat of action or suit, by a third party
                          alleging that the manufacture, use or sale of the SAC
                          Product or Other Product or the practice of Know-How
                          infringes a U.S. patent, or violates any other
                          proprietary rights in the Territory of any third
                          party, the party aware shall promptly notify the other
                          party of the same and fully disclose the basis
                          therefor.

                  11.2    InSite shall have the sole right at its own expense to
                          compromise or defend any such action or suit, or
                          threat of action or suit, on such basis and on such
                          terms as InSite may determine as appropriate in its
                          sole discretion, in its own name, or jointly in the
                          name of CVO and InSite as may be deemed necessary or
                          appropriate by InSite, and provided that CVO shall
                          have the right to participate at its own expense.
                          InSite shall keep CVO reasonably informed as to the
                          status of, and basis for, any such claim and shall
                          consult with CVO from time to time as to the defense
                          of such suit or action. CVO shall cooperate fully with
                          InSite in the defense of such suit or action,
                          including, without limitation, by making all relevant
                          papers and records available to InSite and by making
                          CVO's employees available for interviews and
                          depositions and InSite agrees to pay all reasonable
                          out-of-pocket expenses incurred by CVO at the request
                          of InSite. Notwithstanding the foregoing, neither
                          party shall have the right to settle any such claim
                          without the prior written consent of the other party,
                          which consent shall not be unreasonably withheld.

                  11.3    If, by the terms of any settlement approved by InSite,
                          which approval shall not be unreasonably withheld, or
                          if by a judgment, decree or decision of a court,

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                          tribunal or other authority of competent jurisdiction,
                          CVO is required to obtain a license from a third party
                          in order to develop, make, have made, use or sell SAC
                          Product or Other Products (hereinafter "Third Party
                          License") and to compensate or pay damages to such
                          third party and/or pay royalties under such license,
                          then any royalties payable under Section 4 of this
                          Agreement shall be reduced by (a) any damages paid or
                          payable by CVO to such other party and (b) the amount
                          of royalties payable to the third party on future
                          sales under such Third Party License, provided the
                          amount of the reduction in the aggregate shall not be
                          greater than one-half (1/2) of the royalties
                          previously and hereafter payable to InSite pursuant to
                          this Agreement.

                          The reduction of royalties shall not apply to any SAC
                          Product or Other Products at issue in such action or
                          suit, or threat of action or suit, to the extent the
                          infringement is the direct result of such Product's
                          being (i) made in whole or in part in accordance to
                          new specifications delivered after the date of this
                          Agreement; or (b) combined with other products or
                          processes. CVO will indemnify InSite and its officers,
                          directors, agents and employees from all damages,
                          settlements, attorneys' fees and expenses related to a
                          claim of infringement or misappropriation excluded
                          from CVO's right to reduce royalties by this sentence
                          and related to the sale of Products by CVO.

                  11.4    Nothing in this Section 11, or in Section 10, shall be
                          construed as a waiver or cure of any breach of any
                          warranties set forth in Section 6 or any release of
                          any claim by CVO as may be appropriate relating
                          thereto.

         12. PRODUCT LIABILITY

                  12.1    CVO shall defend, indemnify and hold InSite harmless
                          from any product liability claims and from any product
                          liability damages arising from the manufacture, use,
                          sale or importation by CVO of the SAC Product or Other
                          Products in the Territory, provided that InSite
                          notifies CVO of any such claims within ten (10) days
                          of receipt thereof and reasonably cooperates with CVO
                          in defending against such claims. CVO shall have
                          complete control and over the defense and/or
                          disposition of any such claim.

                  12.2    InSite shall defend and hold CVO harmless from any
                          product liability claims and from any product
                          liability damages arising from the manufacture, use,
                          sale or importation by InSite of the Glaucoma Product,
                          SAC Product or Other Products, provided that CVO
                          notifies InSite of any such claims within ten (10)
                          days of receipt thereof and reasonably cooperates with
                          InSite in defending against such claims. InSite shall
                          have complete control over the defense and/or
                          disposition of any such claim.

         13. PATENT TERM EXTENSION


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                  13.1    InSite shall use its reasonable efforts to cooperate
                          with the Regents in the filing of an application for
                          an extension of any United States patent falling
                          within the Patent Rights and to execute all documents
                          and take any action reasonably necessary in connection
                          therewith.

         14. LIMITATION OF LIABILITY

                          EXCEPT AS OTHERWISE PROVIDED BELOW, NEITHER PARTY
                          SHALL BE RESPONSIBLE OR LIABLE WITH RESPECT TO ANY
                          SUBJECT MATTER OF THIS AGREEMENT UNDER ANY CONTRACT,
                          NEGLIGENCE, STRICT LIABILITY OR OTHER THEORY:

                              (A)   FOR ANY AMOUNTS IN EXCESS OF THE AGGREGATE
                                    OF ROYALTIES PAID TO IT, OR

                              (B)   FOR ANY MATTER BEYOND ITS REASONABLE
                                    CONTROL.

                          THE LIMITATIONS IN THIS SECTION 14 SHALL NOT APPLY TO
                          CLAIMS OF INDEMNIFICATION UNDER SECTION 12 HEREOF OR
                          TO ACTIONS OF CVO BEYOND THE SCOPE OF THE LICENSE
                          GRANTED HEREUNDER.

         15. TRADEMARKS

             CVO shall market the SAC Product and the Other Products under a
             trademark owned by CVO which shall be different than the trademark
             under which InSite markets the Glaucoma Product.

         16. NOTICES

             All notices required or permitted hereunder shall be given in
             writing and sent by facsimile transmission, or mailed postage
             prepaid by first class certified or registered mail, or sent by a
             nationally recognized express courier service, or hand delivered at
             the following addresses:

                           CIBA Vision Ophthalmics
                           11460 Johns Creek Parkway
                           Duluth, Georgia 30155-1518
                           Attn: President

                           InSite Vision Incorporated
                           965 Atlantic Avenue
                           Alameda, California 94501



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                           Attn:  Chief Executive Officer

                  Any notice, if mailed properly addressed, postage prepaid,
                  shall be deemed made three (3) days after the date of mailing
                  as indicated on the certified or registered mail receipt, or
                  on the next business day if sent by express courier service or
                  on the date of delivery or transmission if hand delivered or
                  sent by facsimile transmission.

         17.      TERM AND TERMINATION

                  17.1    The term of this Agreement shall begin as of the date
                          hereof and shall remain in effect until the expiration
                          of the last to expire patent among those patents
                          referred to in Section 4 hereof unless earlier
                          terminated as permitted hereunder.

                  17.2    In the event of a breach or default of this Agreement
                          by either party which is not cured within ninety (90)
                          days after the receipt of notice thereof from the
                          other party, the party not in breach or default shall
                          be entitled (without prejudice to any of its other
                          rights) to terminate this Agreement by giving notice
                          to take effect immediately.

                  17.3    CVO may terminate this Agreement and the licenses
                          granted hereunder at any time, without cause, at which
                          time CVO, and its Affiliates and sublicensees, as
                          applicable, shall return to InSite all documented or
                          written Know-How previously provided to CVO by InSite
                          pursuant to Section 7 of this Agreement.

                  17.4    The termination of this Agreement shall not release
                          either party from any obligation (including, without
                          limitation, payment) which matured prior to the
                          effective date of the termination.

                  17.5    The obligations set forth in Sections 8 and 12 shall
                          survive the termination or expiration of this
                          Agreement.

         18. FORCE MAJEURE

                  18.1    Neither party shall be responsible or liable to the
                          other hereunder for failure or delay in performance
                          (except obligations to pay) of this Agreement due to
                          any war, fire, accident or other casualty, or any
                          labor disturbance or act of God or the public enemy,
                          or any other contingency beyond such party's
                          reasonable control. In addition, in the event of the
                          applicability of this Section , the party affected by
                          such force majeure shall use reasonable efforts,
                          consistent with good business judgment, to eliminate,
                          cure and overcome any of such causes and resume
                          performance of its obligations.


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         19. ASSIGNMENT

                  19.1    This Agreement and all rights and obligations
                          hereunder are personal to the parties hereto and, may
                          not be assigned, except pursuant to Sections 2.3 and
                          2.4 hereof, without the express prior written consent
                          of the other. Notwithstanding the foregoing, either
                          party may assign this Agreement to an entity
                          controlled by, or under common control with or
                          representing a successor in interest without a change
                          in control of the original party. Any assignment or
                          attempt at same in the absence of such prior written
                          consent shall be void and without effect.

         20. GOVERNING LAW

                  20.1    This Agreement shall be governed by, and construed in
                          accordance with, the laws of the State of New York
                          without regard to conflicts of laws provisions
                          thereof.

         21. SEVERABILITY

                  21.1    If any one or more of the provisions of this Agreement
                          shall be held to be invalid, illegal or unenforceable,
                          the validity, legality or enforceability of the
                          remaining provisions hereof shall not in any way be
                          affected or impaired thereby. In the event any
                          provision shall be held invalid, illegal or
                          unenforceable, the parties shall use best efforts to
                          substitute a valid, legal and enforceable provision
                          which, insofar as possible, implements the purposes
                          hereof.

         22. NO WAIVER

                  22.1    The failure of any party hereto at any time or times
                          to require performance of any provisions hereof shall
                          in no manner affect its rights to enforce such
                          provision at a later time.

         23. ENTIRE AGREEMENT

                  23.1    This Agreement constitutes the entire understanding
                          between the parties relating to the subject matter
                          thereof, and no amendment or modification to this
                          Agreement shall be valid or binding upon the parties
                          unless made in writing and signed by the
                          representatives of such parties.

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         IN WITNESS WHEREOF, the parties have caused this Agreement to be
executed by their duly authorized representatives as of the day and year first
above written.

                                      CIBA VISION OPHTHALMICS
                                      a Division of CIBA Vision Corporation



                                      By:       /s/ STEPHEN M. MARTIN
                                          --------------------------------------

                                      Name:  Stephen M. Martin

                                      Title:  President



                                      INSITE VISION INCORPORATED



                                      By:  /s/ S.K. CHANDRASEKARAN
                                           -------------------------------------
                                      Name:  S. Kumar Chandrasekaran

                                      Title:  CEO




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                                   APPENDIX A



                                                                   Filed/Issued/
INSITE LICENSED PATENTS     Patent/Application           Date         Allowed

                                                          
J. ROBINSON, BIOADHESIVE         4,615,697   P         10/07/86         I
COMPOSITIONS
AND TREATMENT THEREWITH          4,983,392   P         01/08/91         I
                                 5,225,196   P         07/06/93         I


INSITE PATENTS

OPHTHALMIC SUSPENSIONS            5,192,535  P         03/09/93         I

         *                         *         *           *              *

         *                         *         *           *              *




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