NASA NTRS · 19700000387
Automatic optometer operates with infrared test pattern
Abstract
Refractive strength of human eye is monitored by optometer that automatically and continuously images infrared test pattern onto the retina. Condition of focus of the eye at any instant is determined from optometer settings needed to maintain focus of the pattern on the retina.
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Cornsweet, T. N., Crane, H. D.. 1970-11-01. Automatic optometer operates with infrared test pattern. https://ntrs.nasa.gov/citations/19700000387
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