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Definition of Tritanopia
1. Noun. Rare form of dichromacy characterized by a lowered sensitivity to blue light resulting in an inability to distinguish blue and yellow.
Generic synonyms: Yellow-blue Color Blindness, Yellow-blue Dichromacy
Derivative terms: Blue-blind, Tritanopic
Definition of Tritanopia
1. Noun. A form of color blindness. The person's retina does not respond to the blue color, due to lack of "blue" cone opsins. ¹
¹ Source: wiktionary.com
Medical Definition of Tritanopia
1. Deficient colour perception in which there is an absence of blue-sensitive pigment in the retinal cones. Origin: G. Tritos, third, + an-priv. + ops, eye (05 Mar 2000)
Lexicographical Neighbors of Tritanopia
Literary usage of Tritanopia
Below you will find example usage of this term as found in modern and/or classical literature:
1. A Text-book of physiology for medical students and physicians by William Henry Howell (1913)
"Violet blindness (tritanopia) seems to be so rare as a congenital and ... In cases
of acquired tritanopia resulting from pathological changes it is reported ..."
2. The American Naturalist by American Society of Naturalists, Essex Institute (1907)
"The three forms are named protanopia, deuteranopia, and tritanopia respectively.
... tritanopia is a rare form in which yellow and blue are not recognized. ..."
3. A Text-book of Physiology: For Medical Students and Physicians by William Henry Howell (1915)
"Violet blindness (tritanopia) seems to be so rare as a congenital and ... In cases
of acquired tritanopia resulting from pathological changes it is reported ..."
4. A Text-book of Physiology for Medical Students and Physicians by William Henry Howell (1911)
"Violet blindness (tritanopia) seems to be so rare as a congenital and ... In cases
of acquired tritanopia resulting from pathological changes it is reported ..."
5. Manual of Mental and Physical Tests: A Book of Directions Compiled with by Guy Montrose Whipple (1914)
"... blindness (also termed violet-blindness and tritanopia), is in much dispute.
It certainly is rare, and probably often pathological in character, ..."
6. Human Psychology by Howard Crosby Warren (1919)
"... blindness occurs in a few instances, where the individual is unable to
distinguish between blue and yellow; this is called blue blindness or tritanopia. ..."
7. Ophthalmology; Essays, Abstracts and Reviews. edited by Henry Vanderbilt Würdemann, Nelson Miles Black (1906)
"... tritanopia. He reports another case in which three different diagnoses had
been made at different clinics. X. advocates careful examinations of more ..."
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