Klemens Paul Kaiser, Tyll Jandewerth, Julian Bucur, Marvin Lucas Biller, Christoph Lwowski, Thomas Kohnen
{"title":"Intraocular Lens Power Calculation in Myopic Eyes Undergoing Bilensectomy: Analysis of Comparability and Accuracy.","authors":"Klemens Paul Kaiser, Tyll Jandewerth, Julian Bucur, Marvin Lucas Biller, Christoph Lwowski, Thomas Kohnen","doi":"10.1097/j.jcrs.0000000000001752","DOIUrl":null,"url":null,"abstract":"<p><strong>Purpose: </strong>To address the calculation of intraocular lens (IOL) power in myopic eyes undergoing simultaneous anterior or posterior chamber phakic IOL (pIOL) explantation and lens extraction surgery, a procedure known as bilensectomy, in comparison to myopic eyes without pIOL (controls).</p><p><strong>Design: </strong>Retrospective analysis of comparability and accuracy.</p><p><strong>Setting: </strong>Department of Ophthalmology, Goethe-University, Frankfurt, Germany.</p><p><strong>Methods: </strong>IOLMaster 700 (Zeiss Meditec AG) and Pentacam AXL (Oculus Optikgeräte GmbH) were used for biometry. IOL power was calculated using the Barrett Universal II (BUII), Cooke K6, Hoffer-QST, EVO 2.0, PEARL-DGS, Hill-RBF, and Kane formulas included in the ESCRS online calculator, as well as the T2 and Ladas super formula and the SRK/T and Holladay 1 with or without Wang-Koch axial length adjustment.</p><p><strong>Results: </strong>Sixty eyes (mean axial length: 29.1±2.06 mm) of 60 patients (mean age 57.4±10.9 years) were included. Thirty eyes underwent bilensectomy and 30 served as controls. In bilensectomy eyes, Kane (0.53 D), PEARL-DGS (0.56 D), and Hill-RBF (0.61 D) demonstrated the lowest root-mean square of the absolute error. PEARL-DGS demonstrated the highest percentage of eyes within ±0.25D (46.7%), followed by BUII, Hill-RBF, and Kane (40.0%, each). EVO 2.0 showed a significant difference (p=0.001) in mean PE between the bilensectomy group and the control group. All other formulas showed no significant differences between the two groups (each p>0.05).</p><p><strong>Conclusion: </strong>Simultaneous explantation of a pIOL does not appear to exert a considerable impact on the IOL power calculation in myopic eyes. The performance of the formulas is comparable to myopic eyes without phakic IOLs.</p>","PeriodicalId":15214,"journal":{"name":"Journal of cataract and refractive surgery","volume":" ","pages":""},"PeriodicalIF":3.2000,"publicationDate":"2025-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of cataract and refractive surgery","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1097/j.jcrs.0000000000001752","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"OPHTHALMOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Purpose: To address the calculation of intraocular lens (IOL) power in myopic eyes undergoing simultaneous anterior or posterior chamber phakic IOL (pIOL) explantation and lens extraction surgery, a procedure known as bilensectomy, in comparison to myopic eyes without pIOL (controls).
Design: Retrospective analysis of comparability and accuracy.
Setting: Department of Ophthalmology, Goethe-University, Frankfurt, Germany.
Methods: IOLMaster 700 (Zeiss Meditec AG) and Pentacam AXL (Oculus Optikgeräte GmbH) were used for biometry. IOL power was calculated using the Barrett Universal II (BUII), Cooke K6, Hoffer-QST, EVO 2.0, PEARL-DGS, Hill-RBF, and Kane formulas included in the ESCRS online calculator, as well as the T2 and Ladas super formula and the SRK/T and Holladay 1 with or without Wang-Koch axial length adjustment.
Results: Sixty eyes (mean axial length: 29.1±2.06 mm) of 60 patients (mean age 57.4±10.9 years) were included. Thirty eyes underwent bilensectomy and 30 served as controls. In bilensectomy eyes, Kane (0.53 D), PEARL-DGS (0.56 D), and Hill-RBF (0.61 D) demonstrated the lowest root-mean square of the absolute error. PEARL-DGS demonstrated the highest percentage of eyes within ±0.25D (46.7%), followed by BUII, Hill-RBF, and Kane (40.0%, each). EVO 2.0 showed a significant difference (p=0.001) in mean PE between the bilensectomy group and the control group. All other formulas showed no significant differences between the two groups (each p>0.05).
Conclusion: Simultaneous explantation of a pIOL does not appear to exert a considerable impact on the IOL power calculation in myopic eyes. The performance of the formulas is comparable to myopic eyes without phakic IOLs.
期刊介绍:
The Journal of Cataract & Refractive Surgery (JCRS), a preeminent peer-reviewed monthly ophthalmology publication, is the official journal of the American Society of Cataract and Refractive Surgery (ASCRS) and the European Society of Cataract and Refractive Surgeons (ESCRS).
JCRS publishes high quality articles on all aspects of anterior segment surgery. In addition to original clinical studies, the journal features a consultation section, practical techniques, important cases, and reviews as well as basic science articles.