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The evaluation of the visual function in retinal detachment using multifocal electroretinography
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- Author:
- No author available
- Journal Title:
- CHINESE JOURNAL OF OCULAR FUNDUS DISEASES
- Issue:
- 4
- DOI:
- 10.3760/cma.j.issn.1673-4386.2000.03.003
- Key Word:
- 视网膜脱离/诊断;视网膜电描记术
Abstract： 目的 探讨多焦视网膜电图(multifocal electroretinography,MERG)对视网膜脱离(retina detachment,RD)的视功能客观评价意义.方法 应用VERIS 4.0视诱发反直图像系统检测21例RD患者的22只患眼和36例正常人的42只眼的MERG.测试野的水平视角为±26.6°,垂直视角为±22.1°,采用Burian-Allen接触镜电极,在8 min(分16段)记录103个视网膜部位的反应.结果 RD眼于4个象限、黄斑区和黄斑外区MERG a波、b波潜伏期及b波振幅密度、振幅之和均明显低于正常对照组(P＜0.01);脱离区、非脱离区和正常眼的MERG b波振幅密度分别为(3.44±2.85)、(6.34±3.31)、(21.32±6.48)nV/deg2,三者之间的差异均有非常显著性意义(P＜O.05).结论 多焦ERG能客观定量评价RD的黄斑部、后极部的脱离区和非脱离区的视功能.
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