The comparison of mfVEP in normal eyes and glaucomatous eyes
- VernacularTitle:原发性青光眼不同区域多焦视觉诱发电位的研究
- Author:
Ping-Bao, WANG
;
Xiao-Fang, DONG
;
Zhao-Hua, XIA
;
Qian, TAN
;
Xiao-Bo, XIA
;
Pei-Gang, HUANG
- Publication Type:Journal Article
- Keywords:
multifocal visual evoked potential;
primary glaucoma
- From:
International Eye Science
2006;6(1):16-18
- CountryChina
- Language:Chinese
-
Abstract:
AIM: To test the ability of multifocal visual evoked potential (mfVEP) in the detecting of glaucoma by comparing the mfVEP recorded from normal subjects and glaucoma patients.METHODS: The mfVEP of 32 normal eyes (n =21) and of 58 eyes (n =37) with primary glaucoma were recorded with the Vision Monitor electrophysical apparatus by the second kernel analysis and to determine the correlation of the topographic location between them.RESULTS: There were significant variability (the coefficient of variation was 43.05%) in mfVEP RMS amplitude in the normal subjects; The RMS amplitude of eyes with glaucoma were smaller than that of the normal eyes and significantly statistical difference were found in the relatively center (namely the 0° -10° ring zone) and in superior nasal quadrant (P＜0.05) while there were no significantly statistical differences of the latency time between them.CONCLUSION: The normal subjects have large individual variability of mfVEP responses. The RMS amplitude of the mfVEP of glaucomatous eyes descends, especially in center zone and superior nasal quadrant.
