三种仪器测量角膜曲率的准确性比较  

Compare the accuracy of corneal curvature measured by three instruments

作　　者：陈文静[1] 张瑞智[1] 袁晓成 

机构地区：[1]天津市武清区人民医院眼科,天津301700

出　　处：《中国实用眼科杂志》2016年第7期678-680,共3页Chinese Journal of Practical Ophthalmology

摘　　要：目的比较手动角膜曲率计、电脑自动验光仪、角膜地形图仪三种仪器测量角膜曲率结果的准确性，指导白内障术前测量应用。方法仪器应用对照研究。对2014年12月至2015年4月在武清区人民医院眼科应用三种仪器分别测量拟实施白内障超声乳化及人工晶状体植入术的患者140例（140只眼）的最大、最小及平均角膜屈光力，应用电脑自动验光仪和角膜地形图仪测量角膜散光值及散光轴位，使用SPSS20．0软件对所测参数进行统计学分析比较。结果三种仪器测得的最大、最小及平均角膜屈光力对比差异无统计学意义（P〉0．05），电脑自动验光仪和角膜地形图仪测得的角膜散光值对比差异无统计学意义（P〉0．05），散光轴位对比差异有统计学意义（P〈0．05）。结论三种仪器测量角膜曲率的准确性较好，均适用于白内障术前测量。Objective To compare the accuracy of three types of keratometry： manual keratome- ter, auto-refractometer and corneal topography for measurement the corneal curvature. Methods Totally 140 eyes of maximum corneal refractive power, the minimum corneal refractive power and the mean corneal refractive power were measured by three different types of keratometry before cataract surgery. Corneal astigmatism degree and the axis value of corneal astigmatism by auto-refractometer and corneal topography were measured. All values were analyzed by SPSS 20.0. Results There was no significant difference in the maximum corneal refractive power, the minimum corneal refractive power and the mean corneal refractive power by three different types of keratometry （P 〉0.05）. There was no significant difference in measuring corneal astigmatism degree （P 〉0.05）. However, there was significant difference in measuring of the axis values of corneal astigmatism （P 〈0.05）. Conclusions The accuracy of corneal curvature measured by different types of keratometry is good, all can be used before cataract surgery.

关 键 词：手动角膜曲率计 电脑自动验光仪 角膜地形图仪 角膜曲率 

分 类 号：R778.2[医药卫生—眼科]