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Albinism is caused by a change in the genes that make the pigment melanin.
To have the condition, you need to have a “double dose” of the different gene, one for your mother and one from your father (for oculocutaneous albinism (OCA) - affecting eyes and skin).
There is another type of albinism called ocular albinism (OA), which only affects the eyes. This is far more common in males and is caused by changes in the X chromosome (gender chromosome), and only one copy of this gene is needed to have OA.
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