title: Pupil dynamics with periodic flashes: effect of age on mesopic adaptation.
abstract: The purpose of this study is to determine the pupillary dynamics with periodical flashes from a peripheral glare source, in similar conditions to night driving, while focusing on dependence with age. We measured two groups of people: youth and adults. Maximum pupil size decreases due to periodic flashes. Latency does not present significant differences. The reduction of pupil size is greater for older adults. The presence of a peripheral and periodic glare source modifies the pupil size. This leads to a reduction of retinal illuminance, which is greater for older adults.
authors: Bárbara
authors: B
authors: Silva
authors: Ana
authors: A
authors: Sfer
authors: Marcela A
authors: MA
authors: D'Urso Villar
authors: Luis Alberto
authors: LA
authors: Issolio
authors: Elisa M
authors: EM
authors: Colombo
mesh_terms: D000222:Adaptation, Physiological / Q000502:physiology* / Q000528:radiation effects; D000375:Aging / Q000502:physiology*; D006801:Humans; D008027:Light; D055255:Mesopic Vision / Q000502:physiology* / Q000528:radiation effects; D008875:Middle Aged; D011680:Pupil / Q000502:physiology*; D055815:Young Adult