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Heterochromia Iridum: Two Colors, Two Eyes
Transcript of Heterochromia Iridum: Two Colors, Two Eyes
One example is Waardenburg syndrome, where genetic mutation results in wayward melanocytes that never find their way to the iris for which they were intended. In some cases, only some of an eye’s melanocytes get lost, resulting in patches of different colors in the same eye.
Heterochromia can also be the result of an individual’s receiving different eye color genes. This can happen if two fertilized eggs become fused in utero. Alexander the Great was rumored to have had a green eye and a hazel eye. I also had a friend named Deva who had one green eye and one blue eye.
Iris color develops during the first few months after birth, with the levels of the pigment melanin determining how dark eyes will become.
The less melanin expressed in the iris, the lighter a person's eyes look, and vice versa. Sometimes, though, the concentration and distribution of melanin isn't uniform, which leads to a condition known as heterochromia. Most obviously, the eye colors of the two eyes are different. There are no dangers known to be associated with heterochromia iridum. It is also not gender or race specific, as it is merely a mutation that can occur, in utero, in most any human.
It is, however found in other pre-existing disorders or diseases such as Fuchs dystrophy syndrome; Horner's syndrome; Marfan's syndrome. Having eyes that are two different colors, essentially. Some rather famous people affected by this: