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This is a discussion on Night-blindness... within the Horse Health forums, part of the Keeping and Caring for Horses category
  • Symptoms of night blindness in horses
  • Treatment for nightblindness for horses

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    04-17-2008, 09:02 PM

Any other owners of horses you believe to have night-blindness?

I think my appy has night-blindness....okay from what I have read, his coat pattern guarantees he has night-blindness!

Wondering what symptoms other horses have shown.
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    04-20-2008, 07:00 AM
I didn't know horses could have night blindness Certain color types are more susceptible to it? Wonder if a yard light helps them.... Anyone?
    04-20-2008, 05:22 PM
Research has been done that links the night-blindness gene to a particular gene that causes few spots and snowcaps in appaloosas...100% of them are affected by night-blindness (although I guess it can be to varying degrees). Other horses can be affected as well, there just happens to be a link to these two coat patterns. Basically they can not see in dim light.
My horse is not a homozygous snowcap appy, because his mama is a palomino and not an appy, so it isn't the appy coat pattern gene that would indicate his nightblindness....BUT he has shown other behavior to make me wonder.

Sometimes he puts his head really low, turns his head to the side, and twists his eye to look up at the sky or barn roof....very strange! I have never seen another horse do this. Has anyone else?

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