The monocular visual acuities of six children aged 4 months to 8 years were measured using visual evoked potentials (VEP's) before and during patching therapy. A seventh child had both Snellen and VEP monocular acuities determined before patching. In a cooperative child, it was estimated that VEP acuity was within 0.25 octaves (one line on an eye chart) of Snellen acuity. In the four children less than 3 years of age, patching resulted in a 1.8-octave decrease in acuity of the patched eye and a 2.0-octave improvement in the unpatented eye. After cessation of patching therapy, acuity of the previously patched eye improved 2.0 octaves and that of the abnormal eye declined 1.75 octaves. In the two children older than 4 years, patching resulted in a 1.25-octave acuity decrease in the patched eye. Cessation of patching resulted in a 1.25-octave improvement in acuity of the patched eye. No permanent deleterious effects of patching on acuity were observed.
Portions of these data were presented at the Association for Research in Vision and Ophthalmology, April 1981, Sarasota, Florida; the American Academy of Optometry, December 1980, Chicago, Illinois; and the Society for Research in Child Development, March 1981, Boston, Massachusetts,
Received September 15, 1981; revision received November 27, 1981.
* Ph.D., Postdoctoral Fellow.
†Physician, Member of Faculty.
‡Optometrist, Ph.D., Member of Faculty, F.A.A.O.
J. Vernon Odom
University of Florida
College of Medicine
Department of Ophthalmology
Box J-284, J. Hillis Miller Health Center
Gainesville, Florida 32610
© 1982 American Academy of Optometry