[1] Overall, an estimated 1 in 20,000 people worldwide are born with oculocutaneous albinism.

[1] OCA is caused by mutations in several genes that control the synthesis of melanin within the melanocytes.

[2] Seven types of oculocutaneous albinism have been described, all caused by a disruption of melanin synthesis and all autosomal recessive disorders.

[3][4][5]: 864  Oculocutaneous albinism is also found in non-human animals.

The following types of oculocutaneous albinism have been identified in humans.