Journal of the Korean Ophthalmological Society 1987;28(1):127-130.
Published online January 1, 1987.
YEP in Normal Eyes.
Bong Leen Chang
Department of Ophthalmology, College of Medicine, Seoul National University, Seoul, Korea.
정상인의 VEP
장봉린(Bong Leen Chang)
Abstract
Using Life-Tech instrument(Visulab 5102 recorder, 7330 black and white visual pattern stimulator, 5402A averager, and 5874 P1 preamplifier), normal VEP was measured on 49 healthy person(98 eyes) aged from 23 to 27yrs with visual acuity better than 0.9. The frequency of stimulus was 2Hz, averaged 128 responses and analysis time was 250ms. The check size was 60min horizontally and 50min vertically. The mean P1 latency of 98 eyes was 96.81 +/- 7.51ms. The mean P1 latency of 49 right eyes was 96.78 +/- 7.98ms and that of left eyes was 96.88 +/- 7.20ms. The difference between right and left eye was not significant statistically(p>0.05). The amplitide of VEP was so variable that it was excluded from this analysis.


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