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August 30, 2010

Heterochromia Iridium


Heterochromia Iridium is relatively rare for humans including, but includes common in some animals such as horses, cats, and some species of dogs.
Heterochromia Iridium allegedly as a result of a change in one of several genes that regulate eye color.


Heterochromia Iridium can also be a descendant, although trauma and certain types of medications can also lead to increased or decreased pigmentation in one iris. Some types of medical syndromes, such as Waardenburg syndrome, also can cause a person to have two different eye colors.


Eye color is determined by the amount of melanin, a dark brown pigment, contained in part of the eye called "IRIS".
Blue eyes are caused by the small amount of melanin, while brown eyes showed iris with a lot of melanin content.


People with hair and skin color is darker, has more melanin, so they have brown eyes, while people with hair and skin color is paler, has a smaller amount of melanin that usually have a lighter eye color.
When an individual has a different amount of melanin in each iris of it in their eyes, then their eyes will have a different color. This is called Heterochromia Iridium.



Examples of Heterochromia Iridium in humans and animals:


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