AGE AND BINOCULAR ADVANTAGE - A VEP ASSESSMENT

被引:8
作者
SUTIJA, VG
FICARRA, AP
PALEY, RT
ZHANG, H
SOLAN, HA
WURST, SA
机构
[1] Schnurmacher Institute for Vision Research, State University of New York, State College of Optometry, New York, NY
[2] Department of Psychology, SUNY College at Oswego, Oswego, NY
关键词
Age; Binocular vision; Pattern reversal; Visual evoked potentials;
D O I
10.1097/00006324-199002000-00009
中图分类号
R77 [眼科学];
学科分类号
100212 ;
摘要
Monocular and binocular visual evoked potentials (VEP’s) were recorded in response to contrast-reversing checkerboard patterns of 2 check sizes (14 and 28 min arc) and 2 contrast-reversal rates (1.88 and 7.50 rps) in children (10 and 11-year-olds) and young adults (20 to 30-year-olds). The magnitude of binocular advantage, expressed as the ratio of the binocular to the average monocular response, was assessed by amplitude measurements of the major positive peak. The overall VEP amplitudes were larger for children than for adults across all conditions. The VEP amplitudes for binocularly viewed patterns were also consistently larger than the VEP amplitudes for the monocularly viewed patterns for both age groups. However, when the binocular advantage was expressed as a ratio of binocular to monocular average (MAV), the amplitude difference between the age groups was no longer apparent; although the children’s average VEP responses were of a larger amplitude, the binocular advantage remained the same regardless of age. © 1990 American Academy of Optometry.
引用
收藏
页码:111 / 116
页数:6
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