Progressive retinal atrophy

What is progressive retinal atrophy?

Progressive retinal atrophy is the term we use for several genetic diseases affecting the retina (thin layer of nerve cells at the back of the eye, which convert light into electrical signals). It causes a gradual loss of specialised cells in the retina, ultimately resulting in irreversible blindness.

Why does it occur?

PRA is considered a genetic disease, i.e. the cells in the retina are genetically programmed to self-destruct at a certain point in life.

Can both eyes be affected?

One of the hallmarks of PRA is bilateral symmetric involvement.

Are any breeds predisposed?

Yes, any breed can be affected (since the genetics are still unknown in some breeds), however we commonly see progressive retinal atrophy in: Australian Cattle Dog Collies, Dachshunds, Glen of Imaal Terriers, Gordon Setters, Irish Setters, Irish Wolfhounds, Lhasa Apsos, Miniature Schnauzers, Norwegian Elkhounds, Poodles, Retrievers, Spaniels, Tibetan Terriers, Welsh Corgis