角膜曲率计
人工晶状体度数计算
均方预测误差
白内障手术
平均绝对误差
眼科
人工晶状体
数学
医学
屈光度
标准差
均方误差
角膜
视力
统计
作者
Asher Khan,Neal Rangu,David A. Murphy,David L. Cooke,Rhea L Siatkowski,Aman Mittal,Jascha Wendelstein,Kamran M. Riaz
出处
期刊:Journal of Cataract and Refractive Surgery
[Ovid Technologies (Wolters Kluwer)]
日期:2023-03-01
卷期号:49 (3): 239-245
被引量:2
标识
DOI:10.1097/j.jcrs.0000000000001106
摘要
To compare the prediction accuracy of standard keratometry (K) and total keratometry (TK) for intraocular lens (IOL) power calculation in eyes undergoing combined cataract surgery and Descemet membrane endothelial keratoplasty (triple DMEK).Tertiary care academic referral center.Retrospective case series.Review of 83 eyes (63 patients) that underwent triple DMEK between 2019 and 2021. Biometry measurements were obtained using a swept-source optical biometer (IOLMaster 700). 63 eyes were used for statistical analysis. Mean error, mean absolute error (MAE), SD, median absolute error, maximum absolute error, root mean squared prediction error, and the percentage of eyes within prediction errors of ±0.50 diopters (D) and ±1.00 D were calculated for 9 multivariate and third-generation formulas using K and TK values (Barrett Universal II, Yeo EVO 2.0, Cooke K6, Kane, Pearl-DGS, Haigis, Holladay 1, Hoffer Q, and SRK/T). Formulas were additionally tested by using the prediction for an IOL power 1 D below the IOL used (IOLup1D).For all formulas, MAE was lower for K than for TK by an average of 0.21 D. The lowest MAE value observed was 0.67 D for "adjusted" SRK/T using K, and the highest MAE values observed were 1.24 D and 1.24 D for nonadjusted Hoffer Q and Haigis using TK, respectively. Overall, lower MAE values were observed for multivariate formulas and SRK/T.In triple DMEK eyes, the prediction accuracy of K was higher than that of TK. The most accurate formulas were SRK/T and multivariate formulas using K with the IOLup1D adjustment.
科研通智能强力驱动
Strongly Powered by AbleSci AI