Abbreviated Name: PRA

Disease Description: Progressive Retinal Atrophy (PRA) is a collective term comprising a group of hereditary degenerative lesions of the retina.

Inherit Mode: -

Disease Symptom: Three distinct stages of the disease based on the severity of the clinical signs have been identified. Dogs in Stage 1 exhibit no clinical signs of vision loss. The stage 2 is mainly diagnosed at 6.2±3.1 years but changes were seen as early as 1.1 and as late as 12.6 years of age. While the majority of dogs with these degenerative changes did not appear to have vision problems initially, some owners reported that their dogs exhibited mild to moderate signs of night-blindness as the areas of retinal thinning expanded. Stage 3-changes were observed as early as 9.2 years and as late as 15.4 years. These dogs suffered from loss of night-vision and severely impaired day-vision; some dogs were assessed as completely blind by their owners.

Disease Cause: -

Disease Diagnose: -

Treat Method: -

Breeder Advice: -

Disease Description Source: Link