title: The pupil cycle time test: age variations in normal subjects.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000375:Aging; D002648:Child; D006801:Humans; D008027:Light; D008875:Middle Aged; D011680:Pupil / Q000502:physiology*; D012025:Reflex, Pupillary; D013997:Time Factors