论文部分内容阅读
测量了植入折射和绕射多焦点人工晶体各20例及两个对照组——植入单焦点人工晶体和有晶体眼各20例的对比敏感度。所有病例术后随访期至少一年,矫正视力在20/20~-以上。检查方法包括两种心理物理学试验——Pelli—Robson 测试表和 Vistech 6500测试表,和一项客观检查——视诱发电位(VEP)结果:用 Pelli-Robson 测试表所得的对比敏感度平均值,四个组之间互相比较均无统计学意义;用 Vistech6500测试表在5个空间频率
The contrastive sensitivity of 20 patients with implanted refraction and diffractive multifocal intraocular lenses (IOLs) and 20 controls with two control groups - implanted single focal intraocular lenses (IOLs) and ametropic eyes (20 eyes) were measured. All patients were followed up for at least one year, corrected visual acuity in 20/20 ~ - above. The test included two psychophysical tests - the Pelli-Robson test chart and the Vistech 6500 test chart, and an objective test-evoked potential (VEP) result: the average contrast sensitivity obtained with the Pelli-Robson test chart , The four groups were not statistically significant compared with each other; Vistech6500 test table at 5 spatial frequencies