tritanopia

Noun

tritanopia (countable and uncountable, plural tritanopias)

1. 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.
   • 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...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
   • 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.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