Time-averaged accommodation response to flickering stimuli.
Experiments are described in which the steady-state accommodation response versus stimulus curve was measured with an infrared autorefractor for high-contrast stimuli having a 100% square-wave temporal modulation of luminance in the frequency band 1-200 Hz. Slightly more accurate responses were found at frequencies approximately 50-100 Hz, i.e. above flicker fusion. The relevance of the results to practical situations in which flicker may be experienced is discussed.
Chauhan
K
K
Department of Optometry and Vision Sciences, University of Manchester Institute of Science and Technology, UK.
Charman
W N
WN
Halnan
A M
AM
Kelly
C M
CM
Loughlin
A
A
Neilson
K J
KJ
Walsh
G
G
D000065:Accommodation, Ocular / Q000502:physiology*; D000293:Adolescent; D000328:Adult; D015350:Contrast Sensitivity / Q000502:physiology; D005425:Flicker Fusion / Q000502:physiology; D006801:Humans; D010775:Photic Stimulation; D013997:Time Factors