This is an eye condition.

Day Blindness

What is Achromatopsia?

Achromatopsia 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. Dogs with this disease constantly feel like us when we step out of a movie theater. Night vision remains completely unaffected.

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.

What actions should I take if my dog is affected?

  • In humans, deeply tinted glasses are used to help manage the symptoms.
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