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(Investigative Ophthalmology and Visual Science. 1974;13:293-296.)
© 1974 by The Association for Research in Vision and Ophthalmology, Inc.

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The Visual Evoked Response to Stationary Checkerboard Patterns in Children with Strabismic Ambylopia

U. YINON 1, L. JAKOBOVITZ 1, and E. AUERBACH 1

1 Vision Research Laboratory, Hadassah University Hospital, P. O. Box 499, Jerusalem, Israel

The visual evoked potential (VEP) to stimulation with stationary checkerboard patterns was studied in children with strabismic amblyopia; normal subjects were used as controls. The wave form of the VEP to patterned stimulation differed characteristically from that obtained with nonpatterned stimulation. It was also slightly different in shape after stimulation of the amblyopic eyes in comparison to the normal fellow's eyes. Amplitudes in the normal eyes of amblyopes were found significantly higher (p = 0.003) and latencies significantly shorter (p = 0.004) than in the amblyopic eyes. The mechanism responsible for the dysfunction in neural processing of patterns as well as the site affected in strabismic amblyopia are discussed.

Key Words: checkerboard stimulation • pattern stimulation • strabismic amblyopia • visual evoked potential • visual cortex

Submitted on September 20, 1973






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