目的：探讨Pentacam眼前节分析仪和Keratron Scout角膜地形图仪测量Kappa角的一致性，评价两种仪器测量结果的重复性。

方法：前瞻性随机对照研究。选取2018-01-01/30在我院眼视光中心行近视术前检查的患者69例，所有受试者由同一检查者分别采用Pentacam和Keratron Scout重复测量3次，以(X，Y)坐标形式记录Kappa角的大小，采用组内相关系数(ICC)、Cronbach's Alpha系数评价两种仪器测量Kappa角的重复性； t检验比较两种仪器测量结果的差异，Pearson相关分析其相关性； Bland-Altman图评估两种仪器测量结果的一致性。

结果：3次重复测量时，两种仪器均表现出很好的重复性，两种仪器测得Kappa角差异无统计学意义(X值：P=0.17； Y值：P=0.61)，Pearson相关分析表明Kappa角大小具有相关性(X值：r=0.90，P<0.01； Y值：r=0.91，P<0.01)。Bland-Altman图显示X值和Y值95%一致性区间分别为-0.11～0.14mm和-0.10～0.11mm。

结论：Pentacam眼前节分析仪和Keratron Scout角膜地形图仪测量角膜屈光手术患者Kappa角重复性好，两种仪器测量的Kappa角结果一致性好，可以相互验证。

METHODS: Totally 69 patients were randomly selected from Ophthalmology Department of Leshan People's Hospital. Three readings were taken by the same examiner. Results were recorded in(X, Y)coordinates format and assessed by intraclass correlation coefficient(ICC), Cronbach's Alpha Coefficient, t-test, Pearson correlation analysis and bland-altman analysis.

RESULTS: Both instruments showed excellent repeatability in Kappa angle assessment. The results significantly correlated(X value: r=0.90, P<0.01; Y value: r=0.91, P<0.01), however, no significant difference were found between the two instruments. The widest 95% LoA was -0.11-0.14mm for X coordinate and -0.10-0.11mm for Y.

CONCLUSION: Pentacam and Keratron Scout showed excellent repeatability and agreement in Kappa angle assessment. The two instruments could aid and verify each other.