Twin channel infrared optometer for recording binocular accommodation.
A twin channel infrared (IR) optometer for recording accommodation from each eye is described. Some modifications to a conventional single channel optometer design are necessary to facilitate binocular recording. The optometer incorporates an on-line microcomputer for data acquisition and processing. Processing includes power spectrum and correlation analysis, and a facility for performing cursor controlled measurement of time delays. Accommodation responses recorded are shown to be independent of horizontal eye movements, and little affected by the drug used for mydriasis.
Heron
G
G
Department of Ophthalmic Optics, Glasgow College, Scotland.
Winn
B
B
Pugh
J R
JR
Eadie
A S
AS
D000065:Accommodation, Ocular; D004867:Equipment Design; D006801:Humans; D007259:Infrared Rays; D009907:Optometry / Q000379:methods*; D015348:Vision, Binocular