Eye color

part of an eye

polygenic phenotypic character

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.

Iridology (also known as iridodiagnosis or iridiagnosis) is an alternative medicine technique whose proponents claim that patterns, colors, and other characteristics of the iris can be examined to determine information about a patient's systemic health. Practitioners match their observations to iris charts, which divide the iris into zones that correspond to specific parts of the human body. Iridologists see the eyes as "windows" into the body's state of health.

dark ring that appears to encircle the iris of the eye

uveal cancer that has material basis in uvea pigment cells

American schoolteacher known for her "Blue eyes/Brown eyes" exercise

cat with one blue eye and one eye either green, yellow, or brown; feline form of complete heterochromia

small, white or grayish/brown spots on the periphery of the iris in the human eye

pigmented hamartomatous nodular aggregate of dendritic melanocytes affecting the iris

protein-coding gene in the species Homo sapiens

macular lesion on the side of the face

German physician (1874-1965)

German ophthalmologist (1869–1954)

Swiss anthropologist (1864-1925)

medical condition

eye disease characterized by slit-like depigmented areas of the iris with up to 50% of patients going on to develop gluacoma

1916 film by J. Gordon Edwards

Austrian ophthalmologist (1907–1999)

English psychiatrist