heterochromia
Heterochromia is a variation in coloration most often used to describe color differences of the iris, but can also be applied to color variation of hair or skin. Heterochromia is determined by the production, delivery, and concentration of melanin (a pigment). It may be inherited, or caused by genetic mosaicism, chimerism, disease, or injury. It occurs in humans and certain breeds of domesticated animals.
Key facts
- Medical condition.name
- Heterochromia
- Medical condition.image
- Cuando el color llama la atención.JPG
- Medical condition.caption
- Complete heterochromia iridum
- Medical condition.symptoms
- Different or partially different eye color
- Medical condition.duration
- Lifelong
- Medical condition.treatment
- Iris implant surgery (controversial for cosmetic purposes)
via Wikipedia infobox
Research
551 papers- Iris Heterochromia.Insight (American Society of Ophthalmic Registered Nurses) · 2015
- Sectoral Heterochromia.The New England journal of medicine · 2023
- [Heterochromia].
Article
20 sectionsContents
- Types
- Causes
- Etymology
- Background
- Classification
- Genetic
- Abnormal iris darker
- Abnormal iris lighter
- Acquired
- Abnormal iris darker
- Abnormal iris lighter
- Partial heterochromia – different colors in the same iris
- Sectoral
- Central
- Hair heterochromia
- In history and culture
- In other animals
- See also
- References
- External links
Heterochromia is a variation in coloration most often used to describe color differences of the iris, but can also be applied to color variation of hair or skin. Heterochromia is determined by the production, delivery, and concentration of melanin (a pigment). It may be inherited, or caused by genetic mosaicism, chimerism, disease, or injury. It occurs in humans and certain breeds of domesticated animals.
==Types== Heterochromia of the eye is called heterochromia iridum (heterochromia between the two eyes) or heterochromia iridis (heterochromia within one eye). It can be complete, sectoral, or central. In complete heterochromia, one iris is a different color from the other. In sectoral heterochromia, part of one iris is a different color from its remainder. In central heterochromia, there is a ring around the pupil or possibly spikes of different colors radiating from the pupil.