photopia

/foʊˈtoʊpiə/
noun
  1. Vision in bright light conditions, mediated by the cone cells of the retina; daylight vision.
    • The human eye switches from scotopia to photopia as the sun rises.
    • Photopia allows us to see colors clearly when we are outside on a sunny day.
    • In photopia, the pupils constrict to reduce the amount of light entering the eye.
Antonyms