Abstract

Experimental determination was made of the effect of intense light adaptation (6.20 log Trolands) of one eye upon the dark-adapted threshold of the other eye. A psychophysical method derived from Békésy and analogous to the “up and down” method of Dixon and Mood was used. Three subjects showed a slight increase in sensitivity; one showed no change. The change was not statistically significant for the group. The finding is consistent with the accepted view that the states of adaptation of the eyes are independent and in contradiction to studies which have found an averaging effect.

© 1955 Optical Society of America

Foveal Light Adaptation as Affected by the Spectral Composition of the Test and Adapting Stimuli

William R. Bush
J. Opt. Soc. Am. 45(12) 1047-1057 (1955)

Effects of Exposure to Various Red Lights upon Subsequent Dark Adaptation Measured by the Method of Constant Stimuli

Stanley W. Smith, A. Morris, and Forrest L. Dimmick
J. Opt. Soc. Am. 45(7) 502-506 (1955)

Course of Dark Adaptation under Various Conditions of Pre-Exposure and Testing

Ernst Wolf and Michael J. Zigler
J. Opt. Soc. Am. 45(9) 696-702 (1955)

Some Direct Comparisons between Light and Dark Adaptation*

Howard D. Baker
J. Opt. Soc. Am. 45(10) 839-844 (1955)

Brightness Function: Effects of Adaptation*

J. C. Stevens and S. S. Stevens
J. Opt. Soc. Am. 53(3) 375-385 (1963)