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KMID : 0361419860100020135
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Journal of Korean Academy of Rehabilitation Medicine
1986 Volume.10 No. 2 p.135 ~ p.140
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A Study of ERG in Normal Healthy Korean
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안용팔/Ahn, Yong Pal
박경희/양승한/박주현/Park, Kyoung Hee/Yangk Seung Han/Park, Joo Hyun
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Abstract
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The electroretinogram, a sensitive indicator of the mass retinal integrity and early central nervous system action, has significant value in the diagnosis of visual disorders as well as broad application in clinical and basic research.
The purpose of this study is to establish the normative data of. this laboratory.
With Cadwell 7400 Ganzfeld stimulation ERG system, photopic, scotopic and flicker fusion photopic ERG are recorded from 60 normal eyes of 30 healthy Koreans who showed no evidence of abnormality in ocular and retinal regions.
The subjects ranged in age from 7 to 55 years with a mean age of 30.5. The results are as follows.
1) Latencies and amplitudes of ERP, ap, a,, by and b, in photopic stimulation are 5.35±0. 05 msec, 5.89±3.06 uv, 12.5±2.00 msec, 14.92±5. 16 uv, 16.92±3.00 msec, 12.95±5.53 pv, 21.09±2.48 msec, 22.23±5.68 Pv, 35.57±2.33 msec, 35.83±8.77 pv, respectively.
2) Latencies and amplitudes of ERP, ap, a,, by and b, in scotopic stimulation are 5.7±1.38 msec, 5.67±2.09 pv, 14.19±2.25 msec, 19.38±4.36 pv, 17.99±2.27 msec, 17.48±4.21 pv, 21. 71±2.78 msec, 30.03±7.25 , iv, and 36.65±1.85 msec, 62.27±8.47 pv, respectively.
3) Maximal latency differences between right and left eye in ERP, ap, a,, by and hs are 2.96 msec, 2.55 msec, 1. 73 msec, 2.07 msec and 2 msec, respectively, by photopic stimulation.
4) Maximal latency differences between right and left eye in ERP, a, a,, by and b, are 2. 61 msec, 2. 37 msec, 1.8 msec, 1. 62 msec and 1.98 msec, respectively, by scotopic stimulation.
5) There is no significant latency difference between left and right ERG.
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KEYWORD
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