Abstract

A brief history of the significance of the 1st and 2nd lens reflexes in physiological optics is presented and the development of photographic techniques for recording the lens reflexes is outlined. A new technique photographing the 1st lens reflex under infrared, and hence extra-visible, illumination is detailed.

© 1955 Optical Society of America

Accurate two-dimensional eye tracker using first and fourth Purkinje images

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Instrument for the Study of Binocular Vision

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Automatic Correction of Third-Order Aberrations

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