IOL power calculations after LASIK or PRK: Barrett True-K biometer-only calculation strategy yields equivalent outcomes as a multiple formula approach
IOL power calculations after LASIK or PRK: Barrett True-K biometer-only calculation strategy yields equivalent outcomes as a multiple formula approach
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DOI：
10.1097/j.jcrs.0000000000000883
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发表时间：
2022-07-01
影响因子：
2.8
通讯作者：
Randleman, J. Bradley
中科院分区：
文献类型：
--
作者：
Ferguson, Tanner J.;Downes, Rachel A.;Randleman, J. Bradley
目的：比较使用生物测量仪嵌入的Barrett True-K公式与使用ASCRS屈光后计算器的多公式方法在既往接受近视或远视屈光手术的患者中进行的眼内透镜（IOL）屈光度计算的准确性。设置：科尔眼科研究所，克利夫兰诊所，克利夫兰，俄亥俄州。设计：回顾性，连续病例系列。方法：包括接受过白内障手术且有角膜屈光手术史的患者。对于每个公式，计算IOL预测误差和屈光预测误差。主要观察指标包括平均绝对误差（MAE）和± 0.25 D、± 0.50 D和± 1.00 D范围内的眼睛百分比。结果：分析了96只近视眼和47只远视眼。在近视后队列中，Barrett True-K公式的MAE最低（0.36 D），其次是Haigis-L公式（0.41 D）。Barrett True-K公式在+/- 0.25 D范围内的眼睛百分比（44.8%）显著高于Haigis-L公式（34.4%），后者的百分比第二高（P
Purpose: To compare the accuracy of intraocular lens (IOL) power calculations performed using the biometer-embedded Barrett True-K formula vs a multiple formula approach using the ASCRS postrefractive calculator in eyes with previousmyopic or hyperopic refractive surgery.Setting: Cole Eye Institute, Cleveland Clinic, Cleveland, Ohio.Design: Retrospective, consecutive case series.Methods: Patients who underwent cataract surgery with a history of corneal refractive surgery were included. For each formula, the IOL prediction error and refractive prediction error was calculated. Main outcome measures included mean absolute error (MAE) and the percentage of eyes within +/- 0.25 diopters (D), +/- 0.50 D, and +/- 1.00 D.Results: 96 postmyopic eyes and 47 posthyperopic eyes were analyzed. In the postmyopic cohort, the Barrett True-K formula had the lowest MAE (0.36 D), followed by the Haigis-L formula (0.41 D). The Barrett True-K formula had a significantly higher percentage (44.8%) of eyes within +/- 0.25 D in comparison with the Haigis-L formula (34.4%), which had the second highest percentage (P