Albinism Causes

Albinism causes

        The condition at the base of albinism comes in many forms. Partial albinism called "eye" affects only the eyes, but people often have skin and hair lighter than others of the same family. The total albinism, said "oculocutaneous, results in an absence of melanin in melanocytes. It leads to very specific morphological characteristics. The visual appearance of the patient is characterized by white or blond hair, very pale face, gray or blue iris, the pupil reflects more or less visible red. Very light skin is particularly sensitive to sunlight. Albinos have so poor vision. They are prone to skin cancer if they are not protected from the sun.

Albinism causes pictures

Causes of disease

        Currently, several genes are known to be responsible for various forms of albinis. Albinism is a disease whose incidence in all forms combined is about 1 case per 20,000 births (0.005%).
This figure is higher in certain populations, including African and South American:

• 1 / 12 000 in the U.S. among African-Americans.
• 1 / 1000 in Niger, on the island of Aland.