deuteranopia

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Related to deuteranopic: protanopia, tritanopia

deuteranopia

 [doo″ter-ah-no´pe-ah]
defective color vision, with confusion of greens and reds, and retention of the sensory mechanism for only the hues of blue and yellow. adj., adj deuteranop´ic.

deu·ter·an·o·pi·a

(dū'tĕr-ă-nō'pē-ă),
A congenital abnormality of the retina in which there are two rather than three retinal cone pigments (dichromatism) and complete insensitivity to middle wavelengths (green).
[G. deuteros, second, + anopia]

deuteranopia

/deu·ter·an·o·pia/ (-no´pe-ah) a type of dichromatic vision with confusion of greens and reds, and retention of the sensory mechanism for two hues only—blue and yellow.deuteranop´ic

deuteranopia

(do͞o′tər-ə-nō′pē-ə, dyo͞o′-)
n.
A form of colorblindness characterized by insensitivity to green.

deu′ter·a·nope′ (-nōp′) n.
deu′ter·a·nop′ic (-nŏp′ĭk, -nō′pĭk) adj.

deuteranopia

Ophthalmology Red-green color blindness caused by a lack of middle wavelength–530 nm photopigment. See Color blindness.

deu·ter·an·o·pi·a

, deuteranopsia (dū'tĕr-ă-nō'pē-ă, -opsē-ă)
A congenital abnormality of the retina in which there are two rather than three retinal cone pigments (dichromatism) and complete insensitivity to middle wavelengths (green).
[G. deuteros, second, + anopia]

deuteranopia

A form of colour blindness (colour perception defect) causing a tendency to confuse blues and greens, and greens and reds and with a reduced sensitivity to green.

deuteranopia

Type of dichromatism in which red and green are confused, although their relative spectral luminosities are practically the same as in normals. In the spectrum, the deuteranope only sees two primary colours, the long wavelength portion of the spectrum (yellow, orange or red) appears yellowish and the short wavelength portion (blue or violet) appears bluish. There is, in between, a neutral point which appears whitish or colourless, at about 498 nm. It occurs in slightly over 1% of the male population and only rarely in females. Syn. green blindness (although this term is incorrect as green lights appear to a deuteranope as bright as to a normal observer). See defective colour vision; dichro-matism.
References in periodicals archive ?
The search instruction increased the hit rates for both color-vision-normal and deuteranopic observers because of a reduction in uncertainty brought about by limiting the range of target objects and by affecting a change of so-called mental set.
However, it can be noted that road signs using yellow and blue colors have the same conspicuity for deuteranopic observers as for color-normal observers.