不同角膜曲率测量方法结果的比较  

Comparision of the keratometric value obtained from vary methods

作　　者：李新宇[1] 刘磊[1] 袁菁[1] 董洁玉[1] 邹艳[1] 

机构地区：[1]华中科技大学同济医学院附属同济医院眼科,中国湖北省武汉市430030

出　　处：《国际眼科杂志》2006年第3期644-646,共3页International Eye Science

摘　　要：目的:比较Orbscan眼前节系统与RKT-7700自动式角膜曲率计及手动式角膜曲率计测量角膜曲率的差异。方法:对50例100眼分别进行Orbscan、自动式和手动式角膜曲率计角膜曲率测量。结果:Orbscan、RKT-7700自动式及手动式角膜曲率计角膜曲率测量值分别为:43.42±1.45,43.63±1.50,42.33±1.37D。测量的K1,K2,K,d值均以RKT-7700自动式角膜曲率计为最高,手动式曲率计值最低,手动式角膜曲率计测量值较Orbscan角膜曲率测量值偏低1.0838D(P<0.000);手动式角膜曲率计较RKT-7700自动式角膜曲率计低1.296D(P<0.000);自动式角膜曲率计比Orbscan角膜曲率测量值高0.212D(P=0.294)。Orbscan-II眼前节系统与RKT-7700自动式角膜曲率计间各测量值均无显著性差异。各检测方法间角膜散光值(d)均无显著性差异。手动式角膜曲率计测量的K1,K2,K值与Orbscan-II眼前节系统及RKT-7700自动式角膜曲率计有显著性差异。结论:不同角膜曲率测量仪的测量结果有一定的差异。RKT-7700自动式角膜曲率计测量值最高,手动式角膜曲率计测量值最低,Orbscan眼前节系统与RKT-7700自动式角膜曲率计测量值差异没有显著性。AIM： To compare the difference of keratometric value obtained from Orbscan- Ⅱanterior system,RKT-7700 auto and manual keratometer. METHODS： 100 eyes＇s （50 cases） corneal curvature were obtained from above-mentioned three ways respectively. RESULTS： The value of corneal curvature by Orbscan- Ⅱ, RKT-7700 auto and manual keratometer were 43.42±1.45, 43.63±1.50,42.33 ± 1.37D, respectively. The highest was PKT-7700 and the lowest was manual keratometer. There were statistically significant between manual keratometer with the other two ways （P〈0.000）; PKT-7700 auto keratometer and Orbscan- Ⅱ anterior segment system had no statistically significant （P=0.294）. Manual keretometer had statistically significant in kl, 1（2 and k compared with RKT -7700 and Orbscan-Ⅱanterior segment system, but had no statistically significant in corneal astigmatism（d） among them. CONCLUSION： There have（are） a certain difference in vary methods to measure corneal curvature. The highest and the lowest value is RKT-7700 auto kerotometer and hand-hold kerotometer respectively, there is no statistically significant difference in Orbscan anterior segment photographer and RKT-7700 auto keretometer.

关 键 词：角膜曲率计 曲率 对比研究 

分 类 号：R770.4[医药卫生—眼科]