What does blue eyes in a horse mean?

Answer

For a long time, people believed that a blue-eyed horse was blind. This is not true. Blue eyes don't mean anything, they are just blue. Typically, there is white on the face that covers the eye, especially in spotted breed such as the American Paint Horse, but sometimes a dark horse will just have blue eyes.

Sometimes the horse can have one blue eye and one brown, or even have eyes that are mixed blue and brown in the same eye.