Pupil dynamics with periodic flashes: effect of age on mesopic adaptation

SFER ANA MARÍA; COLOMBO ELISA; SILVA BARBARA; ISSOLIO LUIS ALBERTO; D'URSO MARCELA

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION - (Print)

OPTICAL SOC AMER

Lugar: Illinois Urbana-Champaign; Año: 2016 vol. 33 p. 1546 - 1552

1084-7529

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.