眼科 ›› 2025, Vol. 34 ›› Issue (2): 152-156.doi: 10.13281/j.cnki.issn.1004-4469.2025.02.011

• 论著 • 上一篇    下一篇

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

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   

  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
  • 收稿日期:2024-07-21 出版日期:2025-03-25 发布日期:2025-03-13
  • 通讯作者: 杨文利,Email:yangwl_@163.com

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

Liu Qian, Yang Wenli, Zhai Changbin, Li Dongjun, Wang Ziyang, Chen Wei, Zhao Qi, Li Yifeng, Cui Rui, Shen Lin   

  1. Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University; Beijing Key Laboratory of Ophthalmology and Visual Sciences, Beijing 100730, China

  • Received:2024-07-21 Online:2025-03-25 Published:2025-03-13
  • Contact: Yang Wenli, Email: yangwl_@163.com

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。(眼科,2025,34: 152-156)

关键词: 全角膜曲率, IOLMaster 700, Pentacam AXL

Abstract: 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, TCRP K1, and TCRP K2 also demonstrated relatively good consistency, there were certain differences in the values, and thus the results are not recommended for interchangeable use. (Ophthalmol CHN, 2025, 34: 152-156)

Key words: total keratometry, IOLMaster 700, Pentacam AXL