TY - JOUR T1 - Project hyperopic power prediction: accuracy of 13 different concepts for intraocular lens calculation in short eyes JF - British Journal of Ophthalmology JO - Br J Ophthalmol SP - 795 LP - 801 DO - 10.1136/bjophthalmol-2020-318272 VL - 106 IS - 6 AU - Jascha Wendelstein AU - Peter Hoffmann AU - Nino Hirnschall AU - Isaak Raphael Fischinger AU - Siegfried Mariacher AU - Tina Wingert AU - Achim Langenbucher AU - Matthias Bolz Y1 - 2022/06/01 UR - http://bjo.bmj.com/content/106/6/795.abstract N2 - Purpose 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.Methodology 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.Results 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.Conclusion 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.All data relevant to the study are included in the article or uploaded as online supplemental information. ER -