Search Result for "light adaptation":
Wordnet 3.0

NOUN (1)

1. the process of adjusting the eyes to relatively high levels of illumination; the pupil constricts and the cones system is operative; 



WordNet (r) 3.0 (2006):

light adaptation
    n 1: the process of adjusting the eyes to relatively high levels
         of illumination; the pupil constricts and the cones system
         is operative