title: Speed of accommodation and age.
abstract: The time needed to change accommodation from a near to a far target or from a far to a near target (0.457 and 5.486 m) was measured with a psychophysical threshold procedure in 65 U.S. Navy fighter pilots. The age of the pilots ranged from 24 to 44 years. The speed of accommodative change, far-to-near (FN), slowed with age in a statistically significant fashion; however, near-to-far (NF) did not appreciably slow with age. The intrasubject variability was greater FN than NF but there was not a statistically significant dependence of variability upon age.
authors.affiliation: Medical Sciences Department, Naval Aerospace Medical Research Laboratory, Pensacola, Florida.
authors.forename: L A
authors.initials: LA
authors.lastname: Temme
authors.forename: A
authors.initials: A
authors.lastname: Morris
mesh_terms: D000065:Accommodation, Ocular; D000328:Adult; D000375:Aging / Q000502:physiology*; D006801:Humans; D008297:Male; D008887:Military Medicine; D008889:Military Personnel; D014787:Vision Tests; D014792:Visual Acuity