Trichromatic Health Dictionary

Trichromatic: From 1 Different Sources


adj. describing or relating to the normal state of colour vision, in which a person is sensitive to all three of the primary colours (red, green, and blue) and can match any given colour by a mixture of these three. Compare dichromatic; monochromat.
Health Source: Oxford | Concise Colour Medical Dictionary
Author: Jonathan Law, Elizabeth Martin

Colour Blindness

any of various conditions in which certain colours are confused with one another. True lack of colour appreciation is extremely rare (see monochromat), but some defect of colour discrimination is present in about 8% of Caucasian males, and 0.4% of Caucasian females. The most common type of colour blindness is Daltonism (protanopia) – red-blindness – in which the person cannot distinguish between reds and greens. Occasional cases are due to acquired disease of the retina but in the vast majority it is inherited. The defect is thought to be in the functioning of the light-sensitive cells in the retina responsible for colour perception (see cone). See also deuteranopia; trichromatic.... colour blindness

Dichromatic

adj. describing the state of colour vision of those who can appreciate only two of the three primary colours. People with such vision match any given colour by a mixture of the two they can distinguish. Compare trichromatic.... dichromatic



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