Aerospace Medicine Technical Reports

FAA Office of Aerospace Medicine
Civil Aerospace Medical Institute


Report No: DOT/FAA/AM-65/25

Title and Subtitle: Latency of pupillary reflex to light stimulation and its relationship to aging.

Report Date: September 1965

Authors: Feinberg R, Podolak E.

Abstract: A method is described for measuring pupillary contraction latency period regardless of initial absolute pupil diameter. Pupillary contraction latency period increases with age: the data presented show that the normal pupil, as usually found in healthy young people, has a shorter latency than is found in older normal subjects.

Key Words: aging (physiology), eye, reflexes, contraction, measurement.

No. of Pages: 16

Last updated: Friday, June 1, 2012