眼科 ›› 2022, Vol. 31 ›› Issue (2): 118-122.doi: 10.13281/j.cnki.issn.1004-4469.2022.02.008

• 论著 • 上一篇    下一篇

Pentacam AXL和IOLMaster 500测量白内障术后人工晶状体眼生物参数的比较

范蕊  陈伟  杨文利  李栋军  王子杨  赵琦  李逸丰  崔蕊  沈琳  刘倩   

  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100730
  • 收稿日期:2021-12-19 出版日期:2022-03-25 发布日期:2022-03-25
  • 通讯作者: 杨文利,Email:yangwl_tr@163.com

Comparison of Pentacam AXL and IOLMaster 500 for measuring the parameters of pseudophakic eyes

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

  1. Beijing Tongren Eye Center, Beijing Key Laboratory of Ophthalmology and Visual Sciences, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
  • Received:2021-12-19 Online:2022-03-25 Published:2022-03-25
  • Contact: Yang Wenli, Email: yangwl_tr@163.com

摘要: 目的 比较Pentacam AXL及IOLMaster 500测量白内障术后人工晶状体(IOL)眼生物参数的差异。设计 前瞻性病例系列。 研究对象 2021年10月北京同仁医院白内障术后IOL眼患者69例(69眼)。方法 对患眼先后应用Pentacam AXL及IOLMaster 500测量眼轴长度(AL)、角膜曲率(K1、K2及Km)、前房深度(ACD)及角膜横径(WTW),不同仪器测量结果进行配对t检验及一致性检验,并应用MedCalc软件对两组数据进行Bland-Altman分析。主要指标 AL,K1、K2及Km,ACD及WTW值,组内相关系数(ICC)值,Bland-Altman图的95%一致性界限及95%一致性界限以外的点。结果 Pentacam AXL和IOLMaster 500测量69例(69眼)IOL眼的AL分别为(23.57±1.18)mm、(23.58±1.18)mm,K1分别为(43.57±2.02)D、(43.65±2.09)D(P均>0.05);而Pentacam AXL测得K2为(44.55±2.04)D,Km为(44.06±2.01)D,WTW为(11.25±0.37)mm,均小于IOLMaster 500测得的(44.80±2.07)D、(44.23±2.05)D、(11.48±0.38)mm(P均<0.001)。Pentacam AXL测得ACD(4.14±0.82) mm大于IOLMaster 500的(3.82±0.59)mm(t=2.274,P=0.041)。两种仪器检测AL、K1、K2、Km的ICC值分别为0.999、0.990、0.994、0.996。Bland-Altman分析95%一致性界限AL(-0.1345,0.1039)mm,K1(-0.9013,0.7291)D,K2(-0.8627,0.3622)D,Km(-0.6815,0.3451)D,ACD(-0.7055,1.3397)mm,WTW(-0.7092,0.2499)mm;仅AL 3.28%(2/61)、K1 5.78%(4/69)、K2 7.25%(5/69)、Km 5.78%(4/69)、ACD 0(0/14)及WTW 5.56%(3/54)的点在95%一致性界限以外。结论 Pentacam AXL及IOLMaster 500两种光学生物测量仪检测白内障术后IOL眼的眼轴长度、角膜曲率、前房深度及角膜横径均存在一定差异,两组测量结果不能相互替代使用。(眼科, 2022, 31: 118-122)


关键词: 相干光生物测量仪, 人工晶状体眼, 眼轴, 角膜曲率, 前房深度, 角膜横径, 一致性

Abstract:  Objective To compare the difference between two optical biometric instruments Pentacam AXL and IOLMaster 500 for measuring the parameters of pseudophakic eyes. Design Prospective cases series. Participants 69 cases (69 eyes) of pseudophakic eyes were selected in October 2021 in Beijing Tongren Hospital. Methods The axial length (AL), keratometry (K1, K2 and Km), anterior chamber depth ACD) and white to white  (WTW) corneal diameter were measured by Pentacam AXL and IOLMaster 500 successively. The results of two groups were tested by paired t test and reliability analysis, and MedCalc software was used to do the Bland-Altman analysis. Main Outcome Measures AL, K1, K2, Km, ACD, WTW, intraclass correlation coefficient(ICC) value, 95% consistency limit of Bland-Altman diagram and points outside the 95% consistency limit. Results AL measured by Pentacam AXL and IOLMaster 500 was (23.57±1.18) mm, (23.58±1.18) mm respectively and K1 was (43.57±2.02) D, (43.65±2.09) D respectively (all P>0.05). The K2 was (44.55±2.04) D, Km was (44.06±2.01) D and WTW was (11.25±0.37) mm measured by Pentacam AXL, which were less than (44.80±2.07) D, (44.23±2.05) D and (11.48±0.38) mm measured by IOLMaster 500 (all P<0.001). ACD (4.14±0.82) mm measured by Pentacam AXL was greater than (3.82±0.59) mm of IOLMaster 500 (t=2.274, P=0.041). The ICC values of AL, K1, K2, and Km were all close to 1 (0.999, 0.990, 0.994, and 0.996 respectively). The 95% consistency limit of Bland-Altman analysis was also close, AL (-0.1345, 0.1039) mm, K1 (-0.9013, 0.7291) D, K2 (-0.8627, 0.3622) D, Km (-0.6815, 0.3451) D, ACD (-0.7055, 1.3397) mm, WTW (-0.7092, 0.2499) mm. Only the points of AL 3.28% (2/61), K1 5.78% (4/69), K2 7.25% (5/69), Km 5.78% (4/69), ACD 0 (0/14) and WTW 5.56% (3/54) were outside the 95% consistency limit. Conclusion There are some differences in axial length, keratometry, anterior chamber depth and white to white of pseudophakic eyes between Pentacam AXL and IOLMaster 500. Measurement results cannot be used instead of each other. (Ophthalmol CHN, 2022, 31: 118-122)

Key words: coherent optical biometrics, pseudophakic eyes, axial length, keratometry, anterior chamber depth, white to white, agreement