Visual sensitivity, resolution, and Rayleigh matches following monocular occlusion for one week.
Following three to four days of monocular light exclusion, the directional sensitivity of the retina was reduced at all areas tested. Changes in the shape of the Stiles-Crawford (SC) function were evident at both photopic and scotopic adaptation levels. The flattening of the SC functions was primarily a result of increased sensitivity to light entering through the periphery of the eye pupil. Here, concentration is on concomitant changes in other visual functions including an overall increase in visual sensitivity and a decrease in resolution of low-intensity gratings. Anomaloscope settings revealed a modest increase in red required for a yellow match.
D000328:Adult; D003118:Color Perception; D003623:Dark Adaptation; D006801:Humans; D008875:Middle Aged; D011680:Pupil / Q000502:physiology; D012684:Sensory Thresholds; D014787:Vision Tests / Q000379:methods; D014785:Vision, Ocular / Q000502:physiology*; D014792:Visual Acuity