目的:比较Lenstar LS900与SIRIUS眼前节分析系统对角膜中央厚度测量结果。方法:屈光手术前的患者29例58眼,其中男12例,女17例,年龄18～40（平均21.46±5.13）岁,分别采用Lenstar LS900 和SIRIUS眼前节分析系统测量角膜中央厚度。配对t检验比较检查结果的差异；直线回归分析两种设备测量结果的相关性；运用Bland-Altman法对两种方法进行一致性分析评价。结果:Lenstar LS900测量的角膜中央厚度的平均值为53289±46.65μm,SIRIUS测量的角膜中央厚度的平均值为532.10±47.21μm,经配对t检验分析,两种仪器测量结果差异无统计学意义（P＞0.05）。相关系数分析显示有较高的相关性（r=0.994,P＜0.05）。对两种仪器测量的角膜中央厚度的进行一致性分析,95%一致性界限为（-9.98μm,10.42μm）,在一致性界限范围内。结论:Lenstar LS900与SIRIUS眼前节分析系统具有较高的一致性,表明两种测量仪器具有较高的准确性,可作为角膜中央厚度测量的常规工具。

AIM:To compare the central corneal thickness(CCT) measured by Lenstar LS900 and SIRIUS anterior segment analysis system.METHODS:The CCT was measured on 29 patients (58 eyes), aged 18 to 40 years old, using Lenstar LS900 and SIRIUS eye anterior segment analysis system respectively before the refractive operation. A paired t-test comparison has been taken. The linear regression analysis was used to analyze the correlation of the two measurement results. Bland-Altman has been taken to analyze the correlation of the two methods.RESULTS:The average value of CCT with Lenstar LS900 was 532.89±46.65μm, and that of SIRIUS measurement was 532.10±47.21μm. Two kinds of measurements showed no significant difference (P＞0.05). Correlation coefficient analysis showed high correlation. The correlation coefficient was 0.994 (P＜0.05). Two kinds of the measurements of CCT were consistent.CONCLUSION:The measurement results of Lenstar LS900 and SIRIUS eye anterior segment analysis system show high uniformity. Two measuring instruments are precise and can be used to measure CCT.