KERA's Response to the Goldman, Sachs Survey

           In the Goldman Sachs survey of 100 ophthalmologists, 71 percent
said Intacs resulted in stable visual correction  within four weeks and 81
percent said there was no post-operative pain after 24 hours. (It should be
noted that surgeons were NOT asked about their Intacs patients' pain in the
first 24 hours.) Few of the GS respondents had much experience with Intacs,
with less than half  being trained in Intacs.  Of those trained, 83 percent
said they had performed 20 or fewer Intacs cases.  So, while these early
patient outcomes may sound impressive in themselves, one can speculate that
the results would be even better with an experienced group of Intacs surgeons.

Also significant in the GS survey was that 76 percent of those not trained
said they plan to receive Intacs training.  We believe this speaks not only to
doctors' level of confidence in the KeraVision technology, but also to
doctors' expectation that Intacs will become an important player in vision
correction surgery.  Similar high surgeon demand for Intacs was shown in a
survey last month at the annual meeting of the American Academy of
Ophthalmology (AAO).  In that survey, nearly three-quarters of the doctors
said they intended to receive Intacs training.  This followed a mock courtroom
"trial" of Intacs, PRK and LASIK. After hearing all of the "evidence" on
Intacs -- both pro and con -- the overwhelming majority of surgeons said they
wanted to become Intacs surgeons.

KeraVision believes that comments made during the GS conference call on
November 19 distorted the results. The truth is, Intacs are still a very new
technology in a very early stage of U.S. commercialization.  Initial
indications are that Intacs are meeting with physician and consumer acceptance
and enjoying solid initial clinical outcomes for consumers, even -- as the GS
survey showed -- among surgeons with little Intacs experience.

KeraVision's response to the GS downgrade, we are taking a number of steps to
correct the misinformation about Intacs, including a special mailing to our
stockholders as well as additional information on our Web site at
www.keravision.com.

Thank you for your interest.

Renee Keller
Shareholder Relations
KeraVision, Inc.