From the Department of Cataract Surgery (N. Shetty, Kaweri), Department of Cornea and Refractive Surgery (Koshy, R. Shetty), Narayana Nethralaya, Bangalore, India; Department of Ophthalmology, Maastricht University Medical Center, Maastricht, the Netherlands (Nuijts); Imaging, Biomechanics and Mathematical Modeling Solutions Lab, Narayana Nethralaya Foundation, Bangalore, India (Sinha Roy).
J Cataract Refract Surg. 2021 May 1;47(5):585-592. doi: 10.1097/j.jcrs.0000000000000494.
To compare the repeatability of ocular biometry measured with the LENSTAR LS 900, IOLMaster 700, and Anterion and its impact on predicted intraocular lens (IOL) power.
Tertiary eye-care facility in South India.
Prospective, observational, cross-sectional study.
Eyes diagnosed with cataract had 3 consecutive scans on each biometers. The repeatability was assessed using the within-subject standard deviation (Sw), test-retest repeatability, and coefficient of variation (CoV). The agreement was evaluated with the intraclass correlation (ICC). The IOL power was calculated with the Barrett Universal II formula.
The study comprised 127 eyes of 76 patients. The repeatability of all parameters for a given device were excellent (ICC >0.9, low CoV and Sw). The agreement of the parameters between the biometers was very good (range from 0.93 to 0.99). The predicted IOL power differed statistically between the devices (P < .05), but the difference was clinically insignificant between the 3 biometers (ICC >0.99 for repeat calculation of IOL power).
All the biometers included in the study had good to excellent repeatability of biometry parameters. The agreement of the predicted IOL power was excellent between the 3 optical biometers.
比较 LENSTAR LS 900、IOLMaster 700、Anterion 测量的眼生物测量学的可重复性及其对预测人工晶状体（IOL）度数的影响。
印度南部的一家三级眼科医疗机构。
前瞻性、观察性、横断面研究。
诊断为白内障的眼在每台生物测量仪上连续进行 3 次扫描。使用组内标准差（Sw）、测试-重测重复性和变异系数（CoV）评估重复性。采用组内相关系数（ICC）评估一致性。IOL 度数使用 Barrett Universal II 公式计算。
该研究纳入了 76 例患者的 127 只眼。对于给定的设备，所有参数的重复性均非常好（ICC>0.9，低 CoV 和 Sw）。各生物测量仪之间参数的一致性非常好（范围为 0.93 至 0.99）。各设备之间预测的 IOL 度数存在统计学差异（P<0.05），但 3 种生物测量仪之间的差异在临床上无意义（重复计算 IOL 度数的 ICC>0.99）。
研究中纳入的所有生物测量仪的生物测量参数的重复性均为良好至极好。3 种光学生物测量仪预测的 IOL 度数具有极好的一致性。
