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目的 应用多焦视网膜电图对正常对照眼和视网膜劈裂眼进行检测并比较两者之间的差异。 方法 用 VERIS Science TM 4.0视诱发反应图像系统对 19例 (2 1只眼 )正常对照者和 8例 (15只眼 )视网膜劈裂者进行检测 ,并用全视野视网膜电图 (electroretinogram,ERG)对其中 3例 (6只眼 )视网膜劈裂者进行检测。 结果 正常对照组和视网膜劈裂组 6个环形视网膜区域平均反应密度值或潜伏期比较均显示差异有非常显著性的意义 ,视网膜劈裂患者多焦 ERG三维图皆表现为多处局部性振幅降低 ,中央高峰反应消失或降低 ,其 6个环形视网膜区域反应密度值的 P1 / N1 波比值不同于全视野 ERG的 b/ a波比值。 结论 多焦 ERG和全视野 ERG对视网膜劈裂的诊断各有其优点。
Objective To detect and compare the difference between the two eyes by using multifocal electroretinography. Methods 19 cases (21 eyes) normal controls and 8 cases (15 eyes) retinal rupture were detected by VERIS Science ™ 4.0 visual evoked reaction system. Electron microscope (ERG) Three of them (6 eyes) had retinal rupture. Results The average response density or latency of 6 annular retinas in normal control group and retinal cleavage group showed significant difference. The three-dimensional multifocal ERG images in patients with retinal splitting showed multiple local amplitude decreases, Central peak response disappeared or decreased, and the P1 / N1 ratio values of the six annular retinal areas were different from the b / a ratio of the full-field ERG. Conclusions Multifocal ERG and full field ERG have their own advantages in the diagnosis of retinal detachment.