论文部分内容阅读
我们选择不同的刺激条件，对３２例早期视网膜中央静脉阻塞（ｃｅｎｔｒａｌｒｅｔｉｎａｌｖｅｉｎｏｃｃｌｕｓｉｏｎ，ＶＲＶＯ）患者进行视网膜电图（ｅｌｅｃｔｒｏｒｅｔｉｎｏｇｒａｍ，ＥＲＧ）的检测。缺血型ＣＲＶＯｌ３例的ａ、ｂ波潜伏期延长，ｂ波振幅明显下降；非缺血型ＣＲＶＯ１９例的ａ、ｂ波潜伏期延长，ｂ波振幅表现为轻度降低、升高或正常。提示ｂ波振幅和ｂ／ａ值是区分缺血型与非缺血型ＣＲＶＯ的最敏感指标。我们还探讨了ＥＲＧ在早期ＣＲＶＯ分型中的应用价值。
We selected different stimulation conditions to detect electroretinogram (ERG) in 32 patients with early central retinal vein occlusion (VRVO). In the ischemic CRVO13, the latency of a and b wave prolonged and the amplitude of b wave decreased obviously. The latency of a and b wave in 19 cases of non-ischemic CRVO prolonged and the amplitude of b wave showed a slight decrease, increase or normal. Tip b wave amplitude and b / a value is to distinguish the most sensitive indicators of ischemic and non-ischemic CRVO. We also explored the value of ERG in early CRVO typing.