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Analysis of accuracy of twelve intraocular lens power calculation formulas for eyes with axial hyperopia

PURPOSE: The purpose was to compare twelve intraocular lens power calculation formulas for eyes smaller than 22.0 mm in terms of absolute error (AE), the percentage of postoperative emmetropia, and agreement interval in Bland–Altman analysis. METHODS: The data of hyperopic patients who underwent une...

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Autor principal: Stopyra, Wiktor
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Wolters Kluwer - Medknow 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10365256/
https://www.ncbi.nlm.nih.gov/pubmed/37492218
http://dx.doi.org/10.4103/sjopt.sjopt_64_22
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author Stopyra, Wiktor
author_facet Stopyra, Wiktor
author_sort Stopyra, Wiktor
collection PubMed
description PURPOSE: The purpose was to compare twelve intraocular lens power calculation formulas for eyes smaller than 22.0 mm in terms of absolute error (AE), the percentage of postoperative emmetropia, and agreement interval in Bland–Altman analysis. METHODS: The data of hyperopic patients who underwent uneventful phacoemulsification between January 2016 and July 2021 were reviewed. Intraocular lens power was calculated using Holladay 1, SRK/T, Hoffer Q, Holladay 2, Haigis, Barrett Universal II, Hill-RBF, Ladas, Kane, Emmetropia Verifying Optical (EVO), Pearl-DGS, and K6 formulas. Three months after phacoemulsification, refraction was measured, and the mean AE was calculated. The percentage of patients with full visual acuity (VA) without any correction, with ± 0.25D, ±0.5D, ±0.75D, and limits of agreement for each formula was established. RESULTS: Seventy-two patients, whose ocular axial length (AL) ranged between 20.02 mm and 21.98 mm, were included. The Kane formula achieved the lowest mean AE of 0.09 ± 0.09 just before EVO (0.12 ± 0.09), Hill-RBF (0.17 ± 0.12), and Hoffer Q formulas (0.19 ± 0.16). In addition, with the Kane formula, the percentage of patients with full VA without any correction (80.6%) was the highest ahead of EVO and Hoffer Q formulas (51.5% and 50.0%, respectively). Finally, Kane, EVO, and Hill-RBF obtained the lowest agreement interval (0.4923, 0.5815, and 0.7740, respectively). CONCLUSION: The Kane formula is recommended for intraocular lens power calculation for eyeballs with the AL smaller than 22.0 mm. The EVO formula gives very promising results in regarding the accuracy of intraocular lens power for hyperopic eyes.
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spelling pubmed-103652562023-07-25 Analysis of accuracy of twelve intraocular lens power calculation formulas for eyes with axial hyperopia Stopyra, Wiktor Saudi J Ophthalmol Original Article PURPOSE: The purpose was to compare twelve intraocular lens power calculation formulas for eyes smaller than 22.0 mm in terms of absolute error (AE), the percentage of postoperative emmetropia, and agreement interval in Bland–Altman analysis. METHODS: The data of hyperopic patients who underwent uneventful phacoemulsification between January 2016 and July 2021 were reviewed. Intraocular lens power was calculated using Holladay 1, SRK/T, Hoffer Q, Holladay 2, Haigis, Barrett Universal II, Hill-RBF, Ladas, Kane, Emmetropia Verifying Optical (EVO), Pearl-DGS, and K6 formulas. Three months after phacoemulsification, refraction was measured, and the mean AE was calculated. The percentage of patients with full visual acuity (VA) without any correction, with ± 0.25D, ±0.5D, ±0.75D, and limits of agreement for each formula was established. RESULTS: Seventy-two patients, whose ocular axial length (AL) ranged between 20.02 mm and 21.98 mm, were included. The Kane formula achieved the lowest mean AE of 0.09 ± 0.09 just before EVO (0.12 ± 0.09), Hill-RBF (0.17 ± 0.12), and Hoffer Q formulas (0.19 ± 0.16). In addition, with the Kane formula, the percentage of patients with full VA without any correction (80.6%) was the highest ahead of EVO and Hoffer Q formulas (51.5% and 50.0%, respectively). Finally, Kane, EVO, and Hill-RBF obtained the lowest agreement interval (0.4923, 0.5815, and 0.7740, respectively). CONCLUSION: The Kane formula is recommended for intraocular lens power calculation for eyeballs with the AL smaller than 22.0 mm. The EVO formula gives very promising results in regarding the accuracy of intraocular lens power for hyperopic eyes. Wolters Kluwer - Medknow 2023-05-02 /pmc/articles/PMC10365256/ /pubmed/37492218 http://dx.doi.org/10.4103/sjopt.sjopt_64_22 Text en Copyright: © 2023 Saudi Journal of Ophthalmology https://creativecommons.org/licenses/by-nc-sa/4.0/This is an open access journal, and articles are distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as appropriate credit is given and the new creations are licensed under the identical terms.
spellingShingle Original Article
Stopyra, Wiktor
Analysis of accuracy of twelve intraocular lens power calculation formulas for eyes with axial hyperopia
title Analysis of accuracy of twelve intraocular lens power calculation formulas for eyes with axial hyperopia
title_full Analysis of accuracy of twelve intraocular lens power calculation formulas for eyes with axial hyperopia
title_fullStr Analysis of accuracy of twelve intraocular lens power calculation formulas for eyes with axial hyperopia
title_full_unstemmed Analysis of accuracy of twelve intraocular lens power calculation formulas for eyes with axial hyperopia
title_short Analysis of accuracy of twelve intraocular lens power calculation formulas for eyes with axial hyperopia
title_sort analysis of accuracy of twelve intraocular lens power calculation formulas for eyes with axial hyperopia
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10365256/
https://www.ncbi.nlm.nih.gov/pubmed/37492218
http://dx.doi.org/10.4103/sjopt.sjopt_64_22
work_keys_str_mv AT stopyrawiktor analysisofaccuracyoftwelveintraocularlenspowercalculationformulasforeyeswithaxialhyperopia