视网膜电图在视网膜分支静脉阻塞分型中的应用价值

目的探讨根据视网膜电图(electroretinogram，ERG)对视网膜分支静脉阻塞(branch retinal vein occlusion，BRVO)分型的可能性。方法根据眼底荧光血管造影(fundus fluorescein angiography，FFA)将BRVO分为缺血型及非缺血型，同时行ERG检查，测a、b波振幅、峰潜时及b/a波振幅比值和振荡电位：OP₁、OP₂、OP₃、OP₄振幅、峰潜时及OP₁+OP₂+OP₃+OP₄的振幅之和OPs波的振幅。结果BRVO缺血型组b波及OPs振幅明显下降，缺血组与非缺血型组之间有显著差异。结论ERGb波及OPs振幅下降可作为缺血型的一项参考指标。(中华眼底病杂志,1998,14:10-11)

The applied value of electroretinogram in typing of branch retinal vein occlusion

Objective To probe the possibility of electroretinogram(ERG)maximum combined response for typing branch retinal vein occlusion(BRVO). Methods BRVO were divided into ischemic or nonischemic type according to the appearance of fundus fluorescein angiography.The ERG data were used to define the retinl function:a,b wave amplitude and impact time,b/a wave ratio,oscillatory potential OP 1,OP 2,OP 3,OP 4 amplitude implicit time and Ops amplitude. Results The ERG b wave and OPs amplitude were significantly lower in ischemic group than those in nonischemic group. Conclusion With the REG test,the decline of b wave and OPs amplitude of the maximum combined response might be as a reference of ischemic type BRVO.