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John Marshall

Frost Professor of Ophthalmology at The Institute of Ophthalmology in Association with Moorfield’s Eye Hospital, University College London, UK

John Marshall invented and patented the excimer laser, and today more than 35 million laser vision correction procedures have been performed worldwide. He created the world’s first diode laser for treating the eye problems of diabetes, glaucoma and aging. Over the past 40 years he has held posts chairing the medical advisory boards of many international companies, held (and continues to hold) many academic positions across a great number of top academic institutions, been the Editor and co-Editor of many international journals, and has worked on many national and international committees concerned with protecting the public against the possible damaging effects of lasers and other artificial light sources – perhaps most notably, addressing the United Nations to obtain a Geneva Convention banning the use of anti-personnel laser weapons.

The Cybermans Apprentice

The Hubble Telescope of the Eye

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Part of the Power List 2018

100 reasons to be proud

This is the third time we have tried to map the Top 100 most influential people in the world of ophthalmology. The list includes surgeons, scientists, engineers, CEOs and more, and each one of them has been voted for by you, our readers.

Go to The Power List 2018