Adolf Gaston Eugen Fick (1852-1937) was a German ophthalmologist who invented the contact lens. In 1887 he constructed and fitted the first successful model of a contact lens: an afocal scleral contact shell made from heavy brown glass, which he tested first on rabbits, then on himself, and lastly on a small group of volunteers. It was considered the first successful model of a contact lens. During WWI, Fick headed the field hospitals in France, Russia and Turkey. His uncle was German physician and physiologist, Adolf Eugen Fick. He lived to be 85 and died of natural causes.