Gene Folk (died February 28, 2003) was an American
ophthalmologist who specialized in the diagnosis and treatment of
strabismus. A charter member of the
American Association for Pediatric Ophthalmology and Strabismus, he later served as President of this organization. With Martin Urist, Folk helped found the "Chicago" school of strabismus, whose ideas competed with and stimulated those of
Marshall M. Parks, Arthur Jampolsky, and other prominent strabismologists. During the 1950s and 1960s, Urist and Knapp's contributions led to a much improved understanding of so-called A and V "pattern" strabismus, where the amplitude of deviation varies in up- and downgaze.