AMENDMENT OF PROMISSORY NOTE
This Amendment of Promissory Note is made as of July 15, 1998,
between KeraVision, Inc. (the "Company") and Xxxxxx X. Xxxxxxxxxxx (the
"Purchaser").
The Promissory Note ("Note") executed by the Purchaser on
July 15, 1996, under which the Purchaser promised to pay to the Company
$19,909.44, plus interest, on or before July 15, 1998, is hereby amended
as follows:
(1) The Company and the Purchaser hereby agree that the interest
due with respect to the Note as of the date hereof is $2,477.06, which
amount is hereby added to the original principal amount of the Note, so
that the principal as of the date hereof is $22,386.50.
(2) The due date of all principal and interest under the Note is
hereby extended to July 15, 2000.
(3) The interest rate of the Note changes as of this Amendment
Date from the original 5.95% per annum, compounded semi-annually, to
5.48% per annum, compounded semi-annually.
KERAVISION, INC. XXXXXX X. XXXXXXXXXXX
/s/Xxxxxx X. Xxxxxx /s/Xxxxxx X. Xxxxxxxxxxx
Xxxxxx X. Xxxxxx
President & CEO
