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It can be complete, sectoral, or central. In complete heterochromia, one iris is a different color from the other. In sectoral heterochromia, part of one iris is a different color from its remainder. In central heterochromia, there is a ring around the pupil or possibly spikes of different colors radiating from the pupil.
Occasionally, heterochromia can be a sign of a serious medical condition. A common cause in females with heterochromia is X-inactivation, which can result in a number of heterochromatic traits, such as calico cats. Trauma and certain medications, such as some prostaglandin analogues, can also cause increased pigmentation in one eye. [88]
Heterochromia isn't painful and won't hurt the pup longterm. All it means is that one eye, or part of the eye, lacks pigment. In dogs that can make the eye appear to be blue or bluish-white.
Original - Central heterochromia is an eye condition in which there are two different colors in the same iris. Central heterochromia is where the central (pupillary) zone of the iris is a different color than the mid-peripheral (ciliary) zone. Reason Sometimes, yourself is the best illustration.
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Skin conditions in dogs are very common, so it's important to recognize the symptoms and understand the factors that cause them. Dr. Rebecca MacMillan, a vet with over 15 years of experience, says ...
This is notable in horses, cows, cats, dogs, the urban crow [7] and the ball python [8] but is also found in many other species. Due to the lack of melanin production in both the retinal pigmented epithelium (RPE) and iris , those affected by albinism sometimes have pink pupil due to the underlying blood vessels showing through.
Dogs that only have surgery usually live less than a year, and if the cancer is already advanced at the time of diagnosis, the survival time is only about one month.