Purkinje shift

  1. the changes in perception of the relative lightness and darkness of different colors as illumination changes from daylight to twilight.

Origin of Purkinje shift

First recorded in 1970–75; see origin at Purkinje fiber
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

purkinje shift in Medicine

Purkinje shift

  1. The change in the eye's region of maximal visual acuity as a function of availability of light; in the light-adapted eye the region is in the yellow range whereas in the dark-adapted eye the region is in the green range of the color spectrum.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.