Mark B. Logan

MARK B. LOGAN, Chairman of the Board and Chief Executive Officer of
VISX, Incorporated, joined the Company in November 1994. Mr. Logan has
held senior-management positions at American Home Products Corporation,
where he served as President and General Manager of the company’s
Mexican subsidiary; Becton, Dickinson & Co., where he was Consumer Group
President, responsible for the company’s worldwide diabetes syringe
business; and Bausch and Lomb, where he was President, Health Care and
Consumer Group and also served on the board of directors. Immediately
prior to joining VISX, Mr. Logan was Chairman of the Board, President
and Chief Executive Officer of Insmed Pharmaceuticals, Inc., a
development stage biopharmaceutical company. Mr. Logan is a graduate of
Hiram College, the Program for Management Development at Harvard
University, and was a Woodrow Wilson Fellow at New York University. He
is a director of Abgenix, Inc. and VIVUS, Inc.