Comparison of intraocular lens power calculation formulas with and without total keratometry and ray tracing in patients with previous myopic SMILE
Comparison of intraocular lens power calculation formulas with and without total keratometry and ray tracing in patients with previous myopic SMILE
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DOI：
10.1097/j.jcrs.0000000000001139
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发表时间：
2023-05-01
影响因子：
2.8
通讯作者：
Sekundo, Walter
中科院分区：
文献类型：
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作者：
Elotmani, Anouar Meziane;Messerschmidt-Roth, Anke;Sekundo, Walter
目的：评价不同人工透镜（IOL）计算公式的预测误差（PE）方差和绝对中值PE，包括上一代公式，如Barrett True-K with K、Okulix和基于全角膜曲率（TK）的Haigis计算，以及小切口晶状体摘除术（SMILE）后眼睛模拟模型中的Barrett True-K。设置：马尔堡大学医院眼科，马尔堡，德国。设计：前瞻性研究。方法：术前测量包括SMILE手术前后的IOL屈光度计算。目标屈光度设定为SMILE前患眼的最低近视屈光不正。选择SMILE前患眼最低近视屈光不正的IOL屈光度目标值用于同一患眼的SMILE后IOL计算。将具有相同IOL屈光度的SMILE前后眼的预测屈光度之间的差异定义为IOL差异。结果：49例（98眼）患者行双侧近视SMILE手术，术后患者的屈光度明显低于术前，术后患者的屈光度明显低于术前。Okulix的PE方差与Barrett True-K TK相比无显著差异（P= 0.471）。平均PE的SD为+/- 0.413 D（Haigis-TK）、+/- 0.453 D（Okulix）、+/- 0.471 D（Barrett True-K + TK）、+/- 0.556 D（Haigis-L）和+/- 0.576 D（Barrett True-K + K）。Haigis-TK、Okulix、Barrett True-K + TK、Barrett True-K + K和Haigis-L的平均绝对PE分别为0.340 D、0.353 D、0.404 D、0.511 D和0.715 D。Okulix达到+/- 0.50 D范围内的患眼百分比最高，其次是Haigis-TK、Barrett True-K（带TK）、Barrett True-K（带K）和Haigis-L。结论：结果表明，Haigis联合TK、Okulix和Barrett True-K（带和不带TK）为SMILE后准确的IOL屈光度计算提供了良好的选择。Haigis-L在既往SMILE后显示出近视眼移位的趋势。版权所有（c）2023由威科集团代表ASCRS和ESCRS发布
Purpose: To evaluate the prediction error (PE) variance and absolute median PE of different intraocular lens (IOL) calculation formulas including last-generation formulas such as Barrett True-K with K, Okulix and total keratometry (TK)-based calculations with Haigis, and Barrett True-K in a simulation model in post-small-incision lenticule extraction (SMILE) eyes.Settings: Department of Ophthalmology, University Hospital Marburg, Marburg, Germany.Design: Prospective study.Methods: Preoperative measurements included IOL power calculation before and after SMILE surgery. The target refraction was set to be the lowest myopic refractive error in pre-SMILE eyes. The IOL power targeting at the lowest myopic refractive error in pre-SMILE eyes was selected for the post-SMILE IOL calculation of the same eye. The difference between the predicted refraction of pre- and post-SMILE eyes with the same IOL power was defined as IOL difference. The refractive change induced by SMILE was defined as the difference between preoperative and postoperative manifest refraction.Results: 98 eyes from 49 patients underwent bilateral myopic SMILE. The PE variance of Okulix was not significantly different compared with Barrett True-K with TK (P=.471). The SDs of the mean PEs were +/- 0.413 D (Haigis-TK), +/- 0.453 D (Okulix), +/- 0.471 D (Barrett True-K with TK), +/- 0.556 D (Haigis-L), and +/- 0.576 D (Barrett True-K with K). The mean absolute PE was 0.340 D, 0.353 D, 0.404 D, 0.511 D, and 0.715 D for Haigis-TK, Okulix, Barrett True-K with TK, Barrett True-K with K, and Haigis-L, respectively. The highest percentage of eyes within +/- 0.50 D was achieved by Okulix, followed by Haigis-TK, Barrett True-Kwith TK, Barrett True-K with K, and Haigis-L.Conclusions: Results suggest that Haigis in combination with TK, Okulix, and Barrett True-K with and without TK offer good options for accurate IOL power calculation after SMILE. Haigis-L showed a tendency for myopic shift in eyes after previous SMILE. Copyright (c) 2023 Published by Wolters Kluwer on behalf of ASCRS and ESCRS