Multifocal oscillatory potentials in retinal vein occlusion
- VernacularTitle:视网膜静脉阻塞的多焦振荡电位
- Author:
Dezheng WU
;
Rulong GAO
;
Futian JIANG
- Publication Type:Journal Article
- Keywords:
Retinal vein occlusion/diagnosis;
Electroretinography
- From:
Chinese Journal of Ocular Fundus Diseases
1996;0(01):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the clinical application value of multifocal oscillatory potentials (MOPs) in retinal vein occlusion (RVO). Methods MOPs were tested using VERIS 4.0 visual evoked response imaging system for 19 cases (19 eyes) of RVO,among them 8 cases of central retinal vein occlusion (CRVO) and 11 cases of branch retinal vein occlusion (BRVO). Twenty normal subjects were as normal control group. The stimulative visual angles subtended ?26.6? horizontally and ?22.1? vertica lly. The filter setting was bandpass 100～1 000 Hz. The retinal responses from 103 hexagons were recor ded in 4 min (8 segments). Results In normal control group, OP 1, OP 2 and OP 3 were recorded during 37 ms for first order and 47 ms for second order first slice in whole test field and 5 ring retinal regions, the oscillatory wave shapes of second order were clearer than those of first order. In RVO groups, 91.6% latencies of OP 1, OP 2 and OP 3 were delayed, and 70.8% amplitudes of OP 1, OP 2 and OP 3 were reduced. The delay of the latencies and the decrease of the amplitude in CRVO were more markedly than those in BRVO. Conclusion MOPs can be effectively and quantitatively used to evaluate the retinal function of the different location in RVO.
