IOLMaster 700与Pentacam AXL测量FS-LASIK术后眼全角膜曲率及SimK的一致性比较  

Consistency of total and simulated keratometry measurements using IOLMaster 700 and Pentacam AXL after FS-LASIK

作　　者：刘倩 杨文利 翟长斌 李栋军 王子杨 陈伟 赵琦 李逸丰 崔蕊 沈琳 Liu Qian;Yang Wenli;Zhai Changbin;Li Dongjun;Wang Ziyang;Chen Wei;Zhao Qi;Li Yifeng;Cui Rui;Shen Lin(Beijing Tongren Eye Center,Beijing Tongren Hospital,Capital Medical University,Beijing Key Laboratory of Ophthalmology and Visual Sciences,Beijing 100730,China)

机构地区：[1]首都医科大学附属北京同仁医院,北京同仁眼科中心,眼科学与视觉科学北京市重点实验室,北京100730

出　　处：《眼科》2025年第2期152-156,共5页Ophthalmology in China

摘　　要：目的比较IOLMaster 700和Pentacam AXL在测量FS-LASIK术后眼的全角膜曲率及SimK的差异性和一致性。设计诊断技术评价。研究对象行FS-LASIK手术的近视患者89例(89眼)。方法分别使用IOLMaster 700和Pentacam AXL进行测量,记录IOLMaster 700中的拟合角膜屈光力SimK1、SimK2、全角膜屈光力(TK1、TK2),Pentacam AXL中的SimK1、SimK2、角膜净屈光力(TNP K1、TNP K2)、总角膜屈光力(TCRP K1、TCRP K2)。采用配对t检验比较两种仪器获得的同一参数的差异性。使用Bland-Altman图评估两种仪器获得的同一参数的一致性。主要指标SimK1、SimK2、TK1、TK2、TNP K1、TNP K2、TCRP K1、TCRP K2,Bland-Altman分析中的95%一致性界限(LoA)和95%LoA范围内点。结果IOLMaster700测量的SimK1、SimK2分别为(37.36±1.62)D、(38.12±1.67)D,与Pentacam AXL测量的(37.33±1.68)D、(38.01±1.75)D无统计学差异(t=0.546、1.552,P=0.586、0.124)。IOLMaster700测量的TK1为(36.60±1.81)D,大于Pentacam AXL测量的TNP K1(35.50±1.70)D(t=13.072,P<0.001)和TCRP K1(35.82±1.85)D(t=9.202,P<0.001);IOLMaster700测量的TK2为(37.25±1.87)D,大于Pentacam AXL测量的TNP K2(36.13±1.70)D(t=12.829,P<0.001)和TCRP K2(36.41±1.79)D(t=10.205,P<0.001)。SimK1、SimK2、TK1-TNP K1、TK2-TNP K2、TK1-TCRP K1和TK2-TCRP K2在两台设备之间的95%(LoA)分别为-1.3~1.3 D、-1.2~1.5 D、-0.6~2.8 D、-0.6~2.9 D、-0.9~2.5 D和-0.8~2.5 D。95%LoA内的点数分别为84(94.4%)、84(94.4%)、84(94.4%)、84(94.4%)、82(92.1%)和85(95.5%)。结论IOLMaster 700与Pentacam AXL测量SimK1、SimK2数值一致性较好,结果可以互换使用。测量TK1、TK2、TNP K1、TNP K2、TCRP K1、TCRP K2虽一致性相对较好,但数值有一定差异,结果不建议互换使用。Objective To compare the differences and agreement of IOLMaster 700 and Pentacam AXL in measuring Total keratometry and SimK in patients after FS-LASIK.Design Diagnostic technique evaluation.Participants A total of 89 patients(89 eyes)with myopia who underwent FS-LASIK surgery at the Refractive Surgery Center of Beijing Tongren Hospital.Methods The following parameters were recorded:SimK1,SimK2,Total K1(TK1),and Total K2(TK2)from IOLMaster 700;and SimK1,SimK2,TNP K1,TNP K2,TCRP K1,and TCRP K2 from Pentacam AXL.Bland-Altman plots were used to assess the consistency between the two devices.Paired t-tests were performed to compare the differences in the same parameters obtained by the two measurement instruments.Bland-Altman plots were used to assess the consistency between the two devices.Main Outcome Measures SimK1,SimK2,TK1,TK2,TNP K1,TNP K2,TCRP K1,TCRP K2.Results The SimK1 and SimK2 measured by the IOLMaster 700 were(37.36±1.62)D and(38.12±1.67)D,respectively,showing no statistically significant difference compared to the measurements by Pentacam AXL,which were(37.33±1.68)D and(38.01±1.75)D(t=0.546,1.552;P=0.586,0.124).The TK1 measured by IOLMaster 700 was(36.60±1.81)D,which was greater than the TNP K1(35.50±1.70)D(t=13.072,P<0.001)and TCRP K1(35.82±1.85)D(t=9.202,P<0.001)measured by Pentacam AXL.Similarly,the TK2 measured by IOLMaster 700 was(37.25±1.87)D,greater than the TNP K2(36.13±1.70)D(t=12.829,P<0.001)and TCRP K2(36.41±1.79)D(t=10.205,P<0.001)measured by Pentacam AXL.The 95%limits of agreement(LoA)for SimK1,SimK2,TK1-TNP K1,TK2-TNP K2,TK1-TCRP K1,and TK2-TCRP K2 between the two devices were-1.3~1.3 D,-1.2~1.5 D,-0.6~2.8 D,-0.6~2.9 D,-0.9~2.5 D,and-0.8~2.5 D,respectively.The number of points within the 95%LoA were 84(94.4%),84(94.4%),84(94.4%),84(94.4%),82(92.1%),and 85(95.5%),respectively.Conclusion The measurements of SimK1 and SimK2 between the IOLMaster 700 and Pentacam AXL showed good consistency,and the results can be used interchangeably.Although the measurements of TK1,TK2,TNP K1,TNP K2

关 键 词：全角膜曲率 IOLMaster 700 Pentacam AXL 

分 类 号：R73[医药卫生—肿瘤]