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Simple heterochromia – a rare condition characterized by the absence of other ocular or systemic problems. The lighter eye is typically regarded as the affected eye as it usually shows iris hypoplasia. It may affect an iris completely or only partially. Congenital Horner's syndrome [16] – sometimes inherited, although usually acquired.
Blue eyes in dogs are often related to pigment loss in coatings. The merle gene results in a bluish iris, and merle dogs often have blue, walled, or split eyes due to random pigment loss. Some genetic variants cause Heterochromia iridum. [68] The second way blue eyes can appear is when a dog has a lot of white fur on the face.
Dogs, on the other hand, only have two types of cones in their eyes, allowing them to detect blue and yellow, VCA Animal Hospitals reports. A dog's limited color perception is classified as ...
In many dog breeds the Piebald gene is common. The white parts of the fur interrupt the pigmented coat patterns. Dogs that may have a spotted or multicolored coat, are often called piebald if their body is almost entirely white or another solid color with spotting and patches on the head and neck.
From the Sakhalin Husky to the Patterdale Terrier, we bet you haven't heard of these rare dog breeds. Skip to main content. 24/7 Help. For premium support please call: 800-290 ...
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This is a list of notable people who have been documented as having heterochromia iridis, a condition when the irises have different colours. People who are frequently mistakenly thought to have heterochromia are not included, but may be listed in the Notes section.
The AAO says that it’s an inherited trait that dates back to our early ancestors, about 10,000 years ago. ... Grey eyes make up about 3 percent of the world's population—the second rarest eye ...