tritanopia

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Color blindness

Wikipedia

From trito- (“third (color)”) +‎ an- (“without”) +‎ -opia (“vision”).

tritanopia (countable and uncountable, plural tritanopias)

1. (ophthalmology) A form of color blindness in which the retina is deficient in or lacks cone cells containing opsins that respond to the color blue, resulting in an inability to distinguish blue from green.
   • 1990, T. E. Frumkes, “7: Classical and Modern Psychological Studies of Dark and Light Adaptation”, in K. Nicholas Leibovic, editor, Science of Vision, page 203:

     Tritanopia is an extremely rare hereditary condition corresponding to a loss in function of the short wavelength sensitive cones. To produce transient tritanopia, the eye of the normal observer is first strongly adapted to a yellow light that maximally adapts the pigment of the long and middle wavelength cones, but has relatively less influence on the short wavelength sensitive cones.

   • 1997, M. Alpern, K. Kitahara, D. H. Krantz, 9: Perception of Colour in Unilateral Tritanopia, Alex Byrne, David R. Hilbert (editors), Readings on Color, Volume 2: The Science of Color, page 231,

     M. Alpern et. al 1983 gives results of colour matching and colour discrimination for each eye separately of a subject who acquired tritanopia in his left eye while remaining a normal trichromat with his right one.

   • 2016, Daniel Kernell, Colours and Colour Vision: An Introductory Survey‎, page 167:

     People with an inborn blue-green blindness (tritanopia) may completely lack the function of these receptor cells. […] The inheritance of inborn tritanopia is not sex-linked; the gene for the S-cone opsin is localized to chromosome 7.

• (form of color blindness): color blindness, blue-yellow color blindness

• deuteranopia
• protanopia
• tritanope

• achromatopsia
• cone dystrophy
• deuteranomaly
• dichromacy
• tetrachromacy
• trichromacy
• tritanomaly

• patriation

Internationalism (see English tritanopia).

• IPA^(key): /ˈtritɑnopiɑ/,
• Rhymes: -opiɑ
• Hyphenation^(key): tri‧ta‧no‧pia

tritanopia

1. tritanopia

   Synonym: sinisokeus