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Pet Health Concerns: Hemeralopia

Alaskan Malamute Puppies

The Alaskan Malamute is one breed prone to hemeralopia.

Hemeralopia is a the inability to see clearly in bright light. Most people have heard of night blindness, but not of this day blindness. Animals with this condition simply cannot adapt to bright light.

This condition is usually caused by a secondary issue, such as one of the following:

  • Conditions affecting the cones in the retina (i.e. cone dystrophy, achromatopsia)
  • Side effect from anti-epileptic drugs
  • Pupils that fail to constrict in response to light
  • The absence of the iris in the eye
  • Albinism, where the iris is defectively pigmented
  • The clouding of the lens due to cataracts
  • Certain cancers

However, this condition is also often inherited. Hemeralopia is most often found in Alaskan Malamutes, but is also seen in Miniature Poodles, German Shorthaired Pointers, and Great Danes. It is often diagnosed between eight and 10 weeks of age. Dogs with hemeralopia typically do not have issues with other aspects of their vision.

Unfortunately, there is no effective treatment for hemeralopia, but it can be managed. The best way to manage this condition is to keep the pet in an environment where the light levels can be controlled and kept at a comfortable level. Trips outdoors should be taken at low light or on overcast days.

Have you  ever had a pet with vision problems? How did you approach management or treatment of the condition?

About Heather @FamilyAndFur

Heather Kalinowski lives in the Seattle area with her husband, newborn son, and two rescued pups – an Italian Greyhound named Ava and a Spaniel mix named Jackson. She enjoys reading, writing, spending time with her family, and volunteering with Italian Greyhound Rescue. Google+

One Response to Pet Health Concerns: Hemeralopia

  1. Wilfred Cassar says:

    Hi I have a minute schnauzer and after her last pregnancy I have noticed that she’s been finding it difficult to see during day time otherwise at night she’s ok . During day time I have to guide her out to do her daily walk at night or early morning she’s great no problem . Is there something I can do for her she’s 4 years old .

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