1.The evaluation of the visual function in retinal detachment using multifocal electroretinography
Dezheng WU ; Juanme MA ; Jiongji LIANG
Chinese Journal of Ocular Fundus Diseases 2000;0(04):-
Objective [WT5”BZ]To explore significance of multifocal ERG(MERG) in evaluating visual function in patients with retinal detachment(RD). Methods MERG was tested using VERIS 4.0 visual evoked response imaging system for 21 patients with retinal detachment (22 eyes) and 36 normal subjects (42 eyes). The stimulative visual angles subtended ?26.6? horizontally and ?22.1? vertically. Burian Allen contact lens electrode was used to record the responses from 103 retinal locations in 8 min (16 segments). Results The latencies of a wave and b wave at the 4 quadrans, macular area and extra macular area in RD group were significantly delayed and their amplitudes markedly decreased comparing with normal group (P
2.Effects of indocyanine green angiography on electroretinogram
Juanmei MA ; Feng WEN ; Jiongji LIANG
Chinese Journal of Ocular Fundus Diseases 2000;0(04):-
0 05). Conclusion ICGA using the Topcon 50IA could be performed prior to the recording of the Ganzfeld ERG.
3.Effect of experimental scotoma on multifocal visual evoked potential
Xiaopeng HU ; Shizhou HUANG ; Futian JIANG ; Shixian LONG ; Jiongji LIANG ; Dezheng WU ; Lezheng WU
Journal of Third Military Medical University 2003;0(07):-
Objective To investigate the influence of experimental scotoma on multifocal visual evoked potential (mf-VEP). Methods The mf-VEP of 10 healthy individuals (20 eyes) was measured with VERIS Science 4.0. Every eye was measured for 3 times. The right eye was measured with full field stimulation and upper hemi-field or lower hemi-field masked. The left eye was measured with full field stimulation and central three-rings area or lower nasal field masked. The first slice responses of the second order in different field were analyzed and compared by VERIS software. Results The mf-VEP in masked area was undetectable or obviously decreased in all subjects. In most unmasked field, the amplitudes of mf-VEP were not changed, except that in some place decreased slightly with statistically significant difference in comparison to the full field stimulation mode. Conclusion mf-VEP is influenced with experimental scotoma. The mf-VEP changes are consistent with the visual field masked.