Progressive Retinal Atrophy in Dogs

By Tailwisp Editorial TeamUpdated October 17, 20263 min read

PRA is a heartbreaking inherited disease, but dogs often adapt remarkably well.

What it is

PRA is a family of inherited conditions where the light-sensing cells in the retina deteriorate over time. Different forms occur in different breeds, with different ages of onset. Most dogs lose sight gradually, first at night and later in daylight.

Breeds affected

Many breeds have forms of PRA, including Labrador retrievers, golden retrievers, miniature poodles, cocker spaniels, Irish setters and several others. DNA tests exist for some forms in some breeds. Ask your vet or breeder which apply.

Signs

• Night blindness: reluctance to go out in the dark or hesitation in dim light
• Dilated pupils and a shiny reflection from the eye
• Bumping into objects
• Anxiety in new places
• Cloudy lenses as cataracts develop. See cataracts in dogs
• Eventual total vision loss

Diagnosis

An eye exam by a veterinarian or veterinary ophthalmologist, sometimes with an electroretinogram, confirms retinal disease. DNA tests can identify some forms and carriers. See dog DNA and genetic health testing.

Treatment

There is no cure or proven treatment to halt PRA. Antioxidant supplements have been discussed, but evidence is limited, so ask your vet before using any. Cataracts that form may be monitored or treated. Regular eye exams help watch for related problems such as glaucoma. See glaucoma in dogs.

Genetics and breeding

PRA is typically inherited as a recessive trait in many breeds, meaning carriers can pass it on without being affected. Responsible breeders use DNA testing and eye exams to avoid breeding affected dogs and to make informed pairings.

Helping your dog adapt

1. Keep furniture and routines the same.
2. Block stairs and pool areas.
3. Use scent cues at doors and turns.
4. Talk as you approach.
5. Use a harness and leash outdoors.
6. Provide night lights.
7. Teach verbal cues such as "step" and "careful."
8. Keep toys with scent or sound.

See how do dogs see the world for how dogs rely on other senses.

Emotional well-being

Blind dogs can enjoy walks, play and affection. Provide enrichment such as scent games and puzzle toys. Maintain predictable routines and keep a calm environment.

Veterinary follow-up

Schedule regular eye checks, and call if the eye becomes red, painful or cloudy. Mention PRA to any new vet.

Common mistakes

• Rearranging furniture.
• Assuming the dog will cope without help.
• Skipping genetic testing before breeding.
• Believing unproven cures.

Troubleshooting

• My dog is anxious at night: use lights and gentle guidance.
• He bumps into things: keep spaces consistent.
• The eye looks painful: see your vet.

A simple plan

1. Confirm the diagnosis.
2. Learn the inheritance.
3. Adapt the home.
4. Keep up regular exams.

Real-life examples

A Labrador becomes hesitant at night, and tests confirm PRA, but he continues to enjoy walks with a harness. A poodle adapts to vision loss with consistent routines. A breeder uses DNA tests to avoid affected litters. Knowledge protects future dogs.

Living well

Vision loss does not end a dog's joy. Smell, hearing and your companionship make the world rich.

Understanding DNA test results

A DNA test may show a dog is clear, a carrier or affected for a particular form of PRA. Carriers usually have normal vision but can pass the gene on. Breeders use results to plan pairings so affected puppies are not produced. Tests exist only for certain forms, so a clear result does not rule out all eye disease.

Regular eye exams

Annual exams by a veterinary ophthalmologist are recommended for breeding dogs in many programs. Pet owners can ask their vet whether screening makes sense for the breed. Early identification gives time to prepare the home and routines.

The takeaway

PRA is inherited and untreatable, but dogs adapt. Test breeding dogs and support affected ones with routine and safety.

This article is general educational information, not veterinary advice. Every dog is different. If your dog is unwell, or you are unsure about a symptom, diet change or medication, contact your veterinarian.