Canine Eye Registry Foundation. A registry created to evaluate and clear breeding dogs of hereditary eye defects including Progressive Retinal Atrophy and Retinal Displasia.
Canine Eye Registry Foundation - closed registry of eye test results. http://www.vet.purdue.edu/~yshen/cerf.html
Canine Eye Registry Foundation; maintains a searchable database of all current CERF exam results
(Canine Eye Registration Foundation) - a group of concerned purebred owner/breeders with a goal of eliminating heritable eye diseases in purebred dogs through registration, research, and education. ( info)