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Speed of visual acuity for vertical eye-movements with a change of accommodation
1Department of Psychology, Clark University.
Perceptual and Motor Skills
|December 1, 1989
Abstract:
Speed of visual acuity was measured for Landolt-C targets presented above and below the line of sight as the targets were moved from 2.4 m to 0.6 m from the observer. Target recognition was faster for a downward than an upward eye movement. There was no difference in response times for the up and down eye-movements when the fixation and target distances were the same.