Progressive Retinal Atrophy. A disease which results in thinning, shrinking retinal cells and central or total blindness. This happens gradually. About PRA, here's where I totally agree with Val regarding getting them to an eye specialist for a baseline which my regular vet did not recomment, but we did it anyway. The eye doctor saw this before Max developed cataracts. Max is not a candidate for cataract surgery as a result of this condition.(from Anne & Max) See also cataracts and dry eye for additional information about eyes.
Progressive Retinal Atrophy. A progressive degeneration of the retina that is inherited.
Progressive Retinal Atrophy. A recessively inherited eye disease in which the retina degrades until the dog becomes blind. Very rare in Australian Shepherds. Traumatic retinal damage may be misdiagnosed as PRA.
Progressive Retinal Atrophy - A group of slowly progressive inherited diseases that cause irreversible degeneration of the retinal tissue and eventual blindness.