vision in dim light or darkness
Synonym: scotopic vision. ... Origin: scoto-+ G. Opsis, vision ... (05 Mar 2000) ... 
(sko-to´pe-ә) night vision. the adjustment of the eye for darkness; dark adaptation. adj., scotop´ic., adj.
Type: Term Pronunciation: skō-tō′pē-ă Synonyms: scotopic vision
scotopia 1. The adaptation of the eye to darkness. 2. Loss of color perception, with the ability to discern only shades of black and white. 3. Vision when the eye is adapted to the dark; also: night vision, rod vision, and twilight vision.