$Accuracy of Intraocular Lens Power Calculation Formulas in Myopic Eyes with Target Refractions of Emmetropia and Intentional Myopia$
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Accuracy of Intraocular Lens Power Calculation Formulas in Myopic Eyes with Target Refractions of Emmetropia and Intentional Myopia

Daiki Sakai,1– 3 Yasuhiko Hirami,1,2 Makoto Nakamura,3 Yasuo Kurimoto1,2 1Department of Ophthalmology, Kobe City Eye Hospital, Kobe, Japan; 2Department of Ophthalmology, Kobe City Medical Center General Hospital, Kobe, Japan; 3Department of Surgery, Division of Ophthalmology, Kobe University Graduat...

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Autores principales:	Sakai D, Hirami Y, Nakamura M, Kurimoto Y
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2021
Materias:	cataract surgery postoperative refraction intentional myopia axial myopia iolmaster700 Ophthalmology RE1-994
Acceso en línea:	https://doaj.org/article/03db83bd4bab4795bd8282df8d3710cf
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spelling	oai:doaj.org-article:03db83bd4bab4795bd8282df8d3710cf2021-11-28T19:13:10ZAccuracy of Intraocular Lens Power Calculation Formulas in Myopic Eyes with Target Refractions of Emmetropia and Intentional Myopia1177-5483https://doaj.org/article/03db83bd4bab4795bd8282df8d3710cf2021-11-01T00:00:00Zhttps://www.dovepress.com/accuracy-of-intraocular-lens-power-calculation-formulas-in-myopic-eyes-peer-reviewed-fulltext-article-OPTHhttps://doaj.org/toc/1177-5483Daiki Sakai,1– 3 Yasuhiko Hirami,1,2 Makoto Nakamura,3 Yasuo Kurimoto1,2 1Department of Ophthalmology, Kobe City Eye Hospital, Kobe, Japan; 2Department of Ophthalmology, Kobe City Medical Center General Hospital, Kobe, Japan; 3Department of Surgery, Division of Ophthalmology, Kobe University Graduate School of Medicine, Kobe, JapanCorrespondence: Daiki SakaiDepartment of Ophthalmology, Kobe City Eye Hospital, 2-1-8 Minatojima Minamimachi, Chuo-ku, Kobe-shi, Hyogo, 650-0047, JapanTel +81-78-381-9876Fax +81-78-381-9910Email dsakai1027@gmail.comPurpose: To compare the accuracy of the intraocular lens (IOL) power calculation formulas for predicting the postoperative refraction in eyes with a target of emmetropia or intentional myopia.Patients and Methods: This is a retrospective study conducted at Kobe City Eye Hospital, Kobe, Japan. Fifty eyes of 50 patients with axial myopia who underwent uncomplicated phacoemulsification and single-type IOL implantation for a target of emmetropia (plano to − 0.5 D) or intentional myopia (− 2.0 D to − 3.0 D) were selected. Preoperative ocular biometry was performed using IOLMaster700 in all eyes. Refractive prediction errors of 6 IOL formulas integrated into IOLMaster700 were compared between eyes with a target of emmetropia and intentional myopia.Results: The mean numerical errors of SRK/T (Sanders, Retzlaff, and Kraft/theoretical), Holladay 1, Hoffer Q, and Holladay 2 significantly differed between the two groups (p < 0.001, p = 0.008, 0.02, and 0.007, respectively). The values for mean numerical errors in eyes with a target of intentional myopia were smaller, showing relatively myopic outcome, as compared with those in eyes with a target of emmetropia. In eyes with a target of emmetropia, the mean numerical errors of Holladay 1 (p < 0.001, 95% confidence interval [CI]: 0.32 to 0.63), Hoffer Q (p = 0.001, 95% CI: 0.12 to 0.42), and Barrett Universal II (p = 0.007, 95% CI: 0.06 to 0.35) were significantly different from zero (hyperopic trend). Furthermore, in eyes with a target of intentional myopia, the mean numerical error of SRK/T (p = 0.001, 95% CI: − 0.61 to − 0.17) and Holladay 2 (p = 0.023, 95% CI: − 0.43 to − 0.04) were significantly different from zero (myopic trend).Conclusion: In patients with axial myopia, some IOL formulas may show a myopic trend in the refractive outcome when targeting intentional myopia as compared to emmetropia.Keywords: cataract surgery, postoperative refraction, intentional myopia, axial myopia, IOLMaster700Sakai DHirami YNakamura MKurimoto YDove Medical Pressarticlecataract surgerypostoperative refractionintentional myopiaaxial myopiaiolmaster700OphthalmologyRE1-994ENClinical Ophthalmology, Vol Volume 15, Pp 4535-4541 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	cataract surgery postoperative refraction intentional myopia axial myopia iolmaster700 Ophthalmology RE1-994
spellingShingle	cataract surgery postoperative refraction intentional myopia axial myopia iolmaster700 Ophthalmology RE1-994 Sakai D Hirami Y Nakamura M Kurimoto Y Accuracy of Intraocular Lens Power Calculation Formulas in Myopic Eyes with Target Refractions of Emmetropia and Intentional Myopia
description	Daiki Sakai,1– 3 Yasuhiko Hirami,1,2 Makoto Nakamura,3 Yasuo Kurimoto1,2 1Department of Ophthalmology, Kobe City Eye Hospital, Kobe, Japan; 2Department of Ophthalmology, Kobe City Medical Center General Hospital, Kobe, Japan; 3Department of Surgery, Division of Ophthalmology, Kobe University Graduate School of Medicine, Kobe, JapanCorrespondence: Daiki SakaiDepartment of Ophthalmology, Kobe City Eye Hospital, 2-1-8 Minatojima Minamimachi, Chuo-ku, Kobe-shi, Hyogo, 650-0047, JapanTel +81-78-381-9876Fax +81-78-381-9910Email dsakai1027@gmail.comPurpose: To compare the accuracy of the intraocular lens (IOL) power calculation formulas for predicting the postoperative refraction in eyes with a target of emmetropia or intentional myopia.Patients and Methods: This is a retrospective study conducted at Kobe City Eye Hospital, Kobe, Japan. Fifty eyes of 50 patients with axial myopia who underwent uncomplicated phacoemulsification and single-type IOL implantation for a target of emmetropia (plano to − 0.5 D) or intentional myopia (− 2.0 D to − 3.0 D) were selected. Preoperative ocular biometry was performed using IOLMaster700 in all eyes. Refractive prediction errors of 6 IOL formulas integrated into IOLMaster700 were compared between eyes with a target of emmetropia and intentional myopia.Results: The mean numerical errors of SRK/T (Sanders, Retzlaff, and Kraft/theoretical), Holladay 1, Hoffer Q, and Holladay 2 significantly differed between the two groups (p < 0.001, p = 0.008, 0.02, and 0.007, respectively). The values for mean numerical errors in eyes with a target of intentional myopia were smaller, showing relatively myopic outcome, as compared with those in eyes with a target of emmetropia. In eyes with a target of emmetropia, the mean numerical errors of Holladay 1 (p < 0.001, 95% confidence interval [CI]: 0.32 to 0.63), Hoffer Q (p = 0.001, 95% CI: 0.12 to 0.42), and Barrett Universal II (p = 0.007, 95% CI: 0.06 to 0.35) were significantly different from zero (hyperopic trend). Furthermore, in eyes with a target of intentional myopia, the mean numerical error of SRK/T (p = 0.001, 95% CI: − 0.61 to − 0.17) and Holladay 2 (p = 0.023, 95% CI: − 0.43 to − 0.04) were significantly different from zero (myopic trend).Conclusion: In patients with axial myopia, some IOL formulas may show a myopic trend in the refractive outcome when targeting intentional myopia as compared to emmetropia.Keywords: cataract surgery, postoperative refraction, intentional myopia, axial myopia, IOLMaster700
format	article
author	Sakai D Hirami Y Nakamura M Kurimoto Y
author_facet	Sakai D Hirami Y Nakamura M Kurimoto Y
author_sort	Sakai D
title	Accuracy of Intraocular Lens Power Calculation Formulas in Myopic Eyes with Target Refractions of Emmetropia and Intentional Myopia
title_short	Accuracy of Intraocular Lens Power Calculation Formulas in Myopic Eyes with Target Refractions of Emmetropia and Intentional Myopia
title_full	Accuracy of Intraocular Lens Power Calculation Formulas in Myopic Eyes with Target Refractions of Emmetropia and Intentional Myopia
title_fullStr	Accuracy of Intraocular Lens Power Calculation Formulas in Myopic Eyes with Target Refractions of Emmetropia and Intentional Myopia
title_full_unstemmed	Accuracy of Intraocular Lens Power Calculation Formulas in Myopic Eyes with Target Refractions of Emmetropia and Intentional Myopia
title_sort	accuracy of intraocular lens power calculation formulas in myopic eyes with target refractions of emmetropia and intentional myopia
publisher	Dove Medical Press
publishDate	2021
url	https://doaj.org/article/03db83bd4bab4795bd8282df8d3710cf
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Accuracy of Intraocular Lens Power Calculation Formulas in Myopic Eyes with Target Refractions of Emmetropia and Intentional Myopia

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