人工晶状体度数计算
平均绝对误差
队列
均方预测误差
白内障手术
眼科
医学
验光服务
协议限制
折射误差
回顾性队列研究
屈光度
人工晶状体
视力
正视
青光眼
光学
镜头(地质)
外科
眼压
核医学
数学
统计
均方误差
内科学
作者
Jascha Wendelstein,Peter Hoffmann,Nino Hirnschall,Isaak Fischinger,Siegfried Mariacher,Tina Wingert,Achim Langenbucher,Matthias Bolz
标识
DOI:10.1136/bjophthalmol-2020-318272
摘要
To evaluate the accuracy of intraocular lens (IOL) power calculation in a patient cohort with short axial eye length to assess the performance of IOL power calculation schemes in strong hyperopes.The study was a single centre, single surgeon retrospective consecutive case series at the Augen- und Laserklinik, Castrop-Rauxel, Germany. Inclusion of patients after uneventful cataract surgery implanting either spherical (SA60AT) or aspheric (ZCB00) IOLs. Inclusion criteria were axial eye length <21.5 mm and/or emmetropising IOL power >28.5 D. Lens constants were optimised on a separate patient cohort considering the full bandwidth of axial eye length. Data of one single eye per patient were randomly included. The outcome measures were: mean absolute prediction error (MAE), median absolute prediction error, mean prediction error with SD and median prediction error and the percentage of eyes with an MAE within 0.25 D, 0.5 D, 0.75 D and 1.0 D.A total of 150 eyes from 150 patients were assessed. Okulix, PEARL-DGS, Kane and Castrop provided a statistically significantly smaller MAE compared with the Hoffer Q and SRK/T formulae.In our patient cohort with short axial eye length, the use of PEARL-DGS, Okulix, Kane or Castrop formulae showed the lowest MAE. The Castrop formula has not been published before, but will be disclosed with a ready-to-use Excel sheet as an addendum to this paper.
科研通智能强力驱动
Strongly Powered by AbleSci AI