Document:

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                                                                   EXHIBIT 10.11

               SUPPLEMENT TO THE LEASE AGREEMENT OF JULY 12, 1994

                                     between

EINFACHE GESELLSCHAFT CALDERARI & SCHWAB, Schloss-Str. 8 A, 2560 NIDAU

                                                                - Lessor  -

                                       and

STARR SURGICAL AG, Hauptstrass 104, 2560 NIDAU

                                                                - Lessee  -

1.      Leased Premises

        Lessee leases an area of 390 m2 on the ground floor of the property
        known as Hauptstrasse 104, 2560 Nidau, as a production site and office
        as well as Parking Area North in front of the building.

2.      Commencement of Lease:

        The Lease shall commence on November 1st, 1995. For the purpose of
        organizing the business, Lessee may have use of the keys starting
        September 1st. immediately. There shall be no rent payable for the
        period up until November 1st, 1995.

3       Term of Lease

        The term of the Lease is fixed and the Lease shall expire on October 31.
        2000.

3.1     Option

        After expiration of the fixed-term Lease, Lessee shall have the option
        to extend the Lease by 5 more years. If Lessee elects to exercise this
        option, it must notify Lessor in writing no later than March 31, 2000.
        If Lessee does not exercise the option and as long as neither of the
        parties to the contract terminates the Lease effective October 31, 2000,
        after expiration of the term the Lease shall be automatically extended
        by one year at a time. In case of termination, notice must always be
        given 6 months in advance.

4.      Rent

4.1     Net Rent

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        Net rent for the production and office space shall be Sfr. 70,200.00
        annually (= Sfr. 180.00 per m2 for that year) and is payable in monthly
        installments of Sfr.5,850.00.

        Net rent for Parking Area "Nord" shall be Sfr. 4,800.00 annually and
        shall be payable in monthly installments of Sfr. 400.00.

4.1.1   After October 1st, 1997, the annual net rent of Sfr. 70,200.00/ 5,850.00
        shall be tied to the consumer price index BIGA(1). The rent corresponds
        to the level of the index applicable at that point in time, i.e. August
        1997. Upon request by one of the parties, the net rent may be adjusted
        once annually on January 1st regardless of the fixed term of the Lease,
        taking into account the entire percentage of change undergone by this
        index. The first adjustment may be done on 01.01.1998 at the earliest.

4.1.2   The net annual rent of Sfr. 70,200.00 / 5,850.00 is a base rent. Rent
        may not fall below this amount regardless of potential adjustments.

4.2     Utilities

4.2.1   The payments on account towards expenses for heating, electricity used
        for shared rooms and for the burner, water fees, possibly sewage and
        garbage collection fees, expenses for janitorial services which are
        billed by the manager on April 30th, shall amount to Sfr. 400.00
        monthly.

4.2.2   In exchange for participation in covering the cost thereof, Lessee shall
        have the opportunity to use the service elevator.

4.3     Bank Guarantee

        At the time the Lease is entered into, Lessee shall deposit the sum of
        Sfr. 15,000.00 as an irrevocable bank guarantee.

10.     Structural Alterations

        Lessor shall carry out the following structural alterations at its
        expense:

        -       Service elevator (Palette USA) to the already leased warehouse
                located in the basement, without transportation of persons.

        -       Stairs for persons leading to the warehouse in the basement.

        -       Opening in the wall with door into the stairway (as big as
                possible).

        -       Construction of 2 walls with 2 doors for building a reception
                area by the entrance (according to layout).

        -       Construction of two bathrooms (3 toilets each for men / 3 each
                for women) and possible sewer hook-up according to layout.

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(1)     Bundesamt fur Industrie, Gewerbe und Arbeit (Swiss federal bureau of
        industry, business and work)

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        -       Construction of a firm boundary along the store window front at
                a railing level.

        -       Construction of a sliding door in store window "North".

Lessor guarantees the completion of the aforementioned work between 07.01 -
08.30.1995 as long as the definite layout is submitted by 04.30.1995 at the
latest.

Nidau,                                          Nidau,

Lessee:                                         Lessor:

                                                [signature]
------------------------                        --------------------------------
STARR SURGICAL AG                               Mr. E. Calderari

                                                [signature]
                                                --------------------------------
                                                Mr. W. Schwab<PAGE>
                                                                   EXHIBIT 10.12

               SUPPLEMENT TO THE LEASE AGREEMENT OF JULY 12, 1994
                        FOR THE PRODUCTION SPACE EX RUCCI

                                     between

EINFACHE GESELLSCHAFT CALDERARI & SCHWAB, Schloss-Str. 8-A 2560 Nidau

                                                                - Lessor  -

                                       and

STARR SURGICAL AG, Hauptsrasse 104, 2560 NIDAU

                                                                - Lessee  -

1.      Leased Premises

        Lessee Lessee leases an area of 259 m2 on the ground floor of the
        property known as Hauptstrasse 104, 2560 Nidau as a production site
        (240 m2) and basement (29 m2), as well as 5 parking spaces in the
        Parking Area North (Ex Rucci).

2.      Commencement of Lease

        The Lease shall commence on September 15, 1999.

3.      Term of Lease

        The term of the Lease is fixed and the Lease shall expire on December 3,
        2006.

3.1     Option

        After expiration of the fixed-term Lease, Lessee shall have the option
        to extend the Lease by 5 more years. If Lessee elects to exercise this
        option, it must notify Lessor in writing no later than 12.31.2005. If
        Lessee does not exercise the option and as long as neither of the
        parties to the contract terminates the Lease effective December 31,
        2005, after expiration of the term, the Lease shall be automatically
        extended by one year at a time. In case of termination, notice must
        always be given 1 year in advance.

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4.      Rent

4.1      Net Rent

        Net rent for the production and cellar space shall be Sfr. 45,520.00
        annually (= Sfr.180.00 per m2 for that year/cellar = Sfr. 80.00 per m2
        for that year) and is payable in monthly installments of Sfr.3,793.00.

        Net rent for 5 parking spaces "Nord" shall be Sfr. 4,800.00 annually and
        shall be payable in monthly installments of Sfr. 400.00.

4.1.1   After September 15, 1999, the annual net rent of Sfr. 45,520.00/
        3,793.00 shall be tied to the consumer price index BIGA1. The rent
        corresponds to the level of the index applicable at that point in time,
        i.e. August 1999. Upon request by one of the parties, the net rent may
        be adjusted once annually on January 1st regardless of the fixed term of
        the Lease, taking into account the entire percentage of change undergone
        by this index. The first adjustment may be done on 01.01.2001 at the
        earliest.

4.1.2   The net annual rent of Sfr. 45,520.00 / 3,793.00 is a base rent. Rent
        may not fall below this amount regardless of potential adjustments.

4.2     Utilities

4.2.1   The payments on account towards expenses for heating, electricity used
        for shared rooms and for the burner, water fees, possibly sewage and
        garbage collection fees, expenses for janitorial services which are
        billed by the manager on April 30th, shall amount to Sfr. 400.00
        monthly.

4.2.2   Possible land contamination by the body shop, such as oil, gasoline,
        etc., shall be the responsibility of Lessor.

10.     Structural Alterations

        Lessor shall carry out the following structural alterations at its
        expense:

        -       Interior walling up of an exterior garage door with transom.

        -       3 doors with an interior width of at least 1.30 m (e.g. a double
                door like we already have in our production area).

        -       1 partition (if possible transom).

        -       All side walls and ceilings finished with smooth plaster and
                painted white.

        -       Floor with smooth, easy to clean covering (such as ceramic tile,
                anti-static linoleum).

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(1)     Bundesamt fur Industrie, Gewerbe und Arbeit (Swiss federal bureau of
        industry, business and work)

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        -       All windows, glass brick walls and doors fitted flush so that
                they are dustproof.

        -       All no longer used pipes, cables and other objects attracting
                dust removed, all walls, floors and ceiling cleaned of dust.

        -       Division of exterior parking area into marked spaces and
                resurfacing of the transition from exterior wall to road
                surface.

        -       Standard lighting for production and warehouse space

11.     Special Provisions

        By entering into this contract, both Lease Agreements of 07.12.1994 as
well as Supplement I dated 07.10.1995 are being extended. The new term of the
Lease shall expire on 12.31.2006.

Nidau,                                          Nidau,

Lessee:                                         Lessor:

[signature] 08.02.99                            [signature]
-----------------------------                   --------------------------------
STARR SURGICAL AG                               Mr. E. Calderari

                                                [signature]
                                                --------------------------------
                                                Mr. W. Schwab

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