角膜地形图和主客观验光测量散光度数及轴位的对比观察  

A comparison of the differences in astigmatism used by corneal topography,retinoscopy and subjective refraction

作　　者：杨培星 刘才远[2] 丁连娥 郑纯 吴静 

机构地区：[1]解放军第一〇五医院眼科,安徽合肥230031 [2]中国科学技术大学医院眼科,安徽合肥230026

出　　处：《安徽医药》2016年第7期1352-1354,共3页Anhui Medical and Pharmaceutical Journal

摘　　要：目的比较分析角膜地形图、检影验光及主觉验光三种方法在准分子激光术前检查测得散光度数和轴位的差异与关系。方法采用计算机辅助的角膜地形图法、带状光散瞳检影验光及主觉验光三种测量方法对123例195只非混合性散光进行检查并比较。结果 (1)检影验光、主觉验光和角膜地形图法测得散光主要分布在-0.5^-2.0 D,三种方法测得散光主要为顺规散光。(2)角膜地形图法与检影验光相比,散光度数差异有统计学意义(P=0.000),轴向差异无统计学意义(P=0.459);角膜地形图法与主觉验光相比,散光度数差异有统计学意义(P=0.000),轴向差异无统计学意义(P=0.355)。检影验光与主觉验光相比,散光度数和轴向均差异无统计学意义(P=0.144,P=0.653)。结论角膜地形图检查对准分子术前检查患者散光轴向定位具有重要参考价值,散光度数仍需结合检影验光和主觉验光确定最终处方。Objective To compare the differences in astigmatism obtained by corneal topography,retinoscopy and subjective refraction in the preoperative examination of excimer laser surgery. Methods A comparison was made through the methods of corneal topography by SCHWIN,cycloplegic retinoscopy and subjective refraction in 123 patients with 195 eyes with simple and compound astigmatism. Results The value of corneal astigmatism measured by corneal topography,retinoscopy and subjective refraction was mainly between- 0. 5 and- 2. 0 D. Between the corneal topography method and retinoscopy there was a statistically significant difference in the power of astigmatism（ P = 0. 000） while there was no significant difference in the axis of astigmatism（ P = 0. 459）. The corneal topography,compared with subjective refraction,showed statistically significant difference in the power of astigmatism（ P = 0. 000） and no significant difference in the axis（ P = 0. 355）. The retinoscopy,compared with subjective refraction,did not show statistically significant differences in the power of astigmatism and its axis（ P = 0. 144,P = 0. 653,respectively）. Conclusions Examination of corneal topography in the preoperative refractive surgery with excimer laser is decisive in calculating the axis of corneal astigmatism,and combined with retinoscopy and subjective refraction it can determine the final value.

关 键 词：散光 角膜地形图 视力试验 

分 类 号：R778.13[医药卫生—眼科]