why do some dogs have one blue eye

Heterochromia iridis is a genetic default when a living being has two different color eyes. Seen more often in dogs, cats and horses, it is a condition that may be present in humans as well, though not as often. There is a couple interesting legends floating around about this intriguing attribute. There are also a few myths that should be dispelled concerning this not so unusual trait. Legend There are a few legends floating around about dogs with two different color eyes. One myth says that dogs with two different color eyes can view heaven and earth at the same time. Another story goes that heterochromatic dogs are natural protectors, while brown or red eye dogs are considered spirit dogs.

Legend says it that sled dogs with heterochromia are faster than dogs with the same color eyes. Are any of these true? Whether the tales are true or not, it does make for interesting speculation. Blindness Dogs with one blue eye suffer from the misconception that eye must be blind. This generally isnБt the case. Dogs living with heterochromia generally have accurate canine vision, which is much different than that of a humanБs vision. If an owner is wondering whether their dog suffers from partial blindness and is afraid or embarrassed to ask their vet, a simple sight test may be performed.

Have someone sit behind the dog and cover one eye. Stand in front of the dog with a large colorful bouncy ball. Drop the ball, if the eye follows the ball the dog can see well enough. Switch eyes and try again. Breeding There is more speculation than evidence if this may be a breedable trait; meaning that it may be bred on purpose. Most cross breeds have the genetic potential to breed heterochromatic offspring. Pure breeds more often afflicted is the Australian Shepherd, Dalmatians, Cathoulas, or Huskies, however, no breed is immune to it.

It is considered a defect by most dog show associations and any dog will automatically be disqualified. Huskies are the exception. A husky with heterochromia will still be allowed to show in the ring. This is an incredible looking БdefectБ that gives any dog a unique look about them. There is nothing physically wrong with the dog; nothing will develop in the future because of this genetic issue. бEmbrace the uniqueness of the dog and dispel the myths surrounding this genetic glitch.
Thanks for writing about this!

One of our dachshunds is a dapple, and she happens to have one brown eye and one blue eye. I d seen plenty of dogs with different colored eyes before we had her, so it was nothing new. But her brown eye has a spot of blue, and her blue eye is partially brown - THAT I hadn t seen before. I m so glad I know the name of it now! Like Debra said, I can sound like a big ol smartypants when people ask now. To me, it s common enough that I thought everyone was familiar with it, even if they didn t know the name (like me).

But we still run into people who say things like, Wow! I ve never seen that before! and they often ask if she s blind in her blue eye (which she isn t). Although. lol. I just thought of something. sometimes when you use a clinical term with folks, they automatically associate it with being something bad. I can just hear it now: Them: What s up with her eyes? Me: Oh, she has heterochromia. it s. (they interrupt the explanation) Them: Awww, that s so sad! Me: No, it s not sad. it s fine. she can actually see just fi. (another interruption) Them: Awww. Me: Sigh.