Progressive Retinal Atrophy (PRA) is a serious hereditary eye disease. As the disease progresses, a degeneration of the retinal cells occurs and leaves the Beagle unable to see stationary objects. PRA in Beagles will usually cause vision impairment by around age five, this is when dilated pupils and night blindness are first noticed.
All Beagle brood stock should be checked for this disease. Your veterinarian can give you information about the various certifying agencies, for example, the Canine Eye Registry Foundation (CERF). Although some infected dogs do receive treatment, a cure for (PRA) is unlikely. If your Beagles’ vision slowly diminishes, he will adapt to his blindness and live a normal life span.