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Ophthalmologic

This is a Eyes condition.

Day Blindness

What is Achromatopsia?

This is a progressive, non painful disorder of the retina that affects color vision and light perception. Cone cells not only register color, they allow the dog to adjust their eyes to bright light--essentially, achromotopic dogs feel like you feel when you step out of a movie theater into bright sunshine... all the time. Symptoms appear as early as 8 weeks of age. You may catch your pup blinking repeatedly in daylight, shaking their heads, or seeking out areas with dimmer light. Because this disease only affects the cone cells, night vision, which is driven primarily by rod cells, remains completely unaffected. This form of achromatopsia has been mapped to mutations in the CNGA3 in the German Shepherd Dog and the Labrador Retriever.

What are the signs & symptoms that develop in affected dogs?

You may catch your pup blinking repeatedly in daylight, shaking their heads, or seeking out areas with dimmer light.

When do signs and symptoms develop?

Symptoms appear as early as 8 weeks of age.

How do vets diagnose this condition?

Veterinary ophthalmologists can diagnose this condition using patient history, ocular exam, and genetic testing.

How is this condition treated?

Currently, there is no available treatment for Achromatopsia, although gene therapy has been successfully used in young dogs.

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