tritan

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