Heterochromia facts for kids
Heterochromia means "different colours", and is most used for the description of different coloured eyes. Some people, and animals, have differences between the irises of their eyes. There are many different causes for this condition.
Genetic causes for heterochromia include genetic mosaicism, where changes may take place in the dividing cells leading up to iris formation in the embryo. Or, environmental damage may occur to the eyes. Or, various diseases and medical conditions may result in changes in eye colour.
Similar events may happen in other tissues, and sometimes result in visible tissue differences. However, the condition is most easily seen in the iris of the eye. The terms Hetrochromia iridis (= different colour of the iris), Heterochromia iridum (plural form) and Heterochromia iridium (a mistake in Latin grammar) are variously used when it is the eye colour which is specifically mentioned.
Images for kids
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An Alaskan husky sled dog with heterochromia. Huskies are a breed known to have a high incidence of heterochromia.
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Australian cricketer Shane Warne had complete heterochromia: his left eye was green and right eye was blue.
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Professional baseball pitcher Max Scherzer has complete heterochromia: his right eye is blue and his left eye is brown.
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Actress Kate Bosworth has complete heterochromia: her left eye is blue and her right eye is hazel.
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Actor Dominic Sherwood has sectoral heterochromia.
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Actor Henry Cavill has sectoral heterochromia.
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Complete heterochromia in a Siberian Husky: one eye blue, one eye brown.
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Sectoral hypochromia in a blue merle Border Collie.
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A Turkish Angora cat with complete heterochromia.
See also
In Spanish: Heterocromía para niños