Prediction accuracy of standard and total keratometry by swept-source optical biometer for multifocal intraocular lens power calculation

Abstract We aimed to compare the refractive outcomes of cataract surgery with diffractive multifocal intraocular lenses (IOLs) using standard keratometry (K) and total keratometry (TK). In this retrospective observational case series study, a total of 302 patients who underwent cataract surgery with...

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Autores principales:	Hun Lee, Jae Lim Chung, Young Jun Kim, Jae Yong Kim, Hungwon Tchah
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/dd75375445424dc688167367724911a3
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spelling	oai:doaj.org-article:dd75375445424dc688167367724911a32021-12-02T13:19:21ZPrediction accuracy of standard and total keratometry by swept-source optical biometer for multifocal intraocular lens power calculation10.1038/s41598-021-84238-12045-2322https://doaj.org/article/dd75375445424dc688167367724911a32021-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-84238-1https://doaj.org/toc/2045-2322Abstract We aimed to compare the refractive outcomes of cataract surgery with diffractive multifocal intraocular lenses (IOLs) using standard keratometry (K) and total keratometry (TK). In this retrospective observational case series study, a total of 302 patients who underwent cataract surgery with multifocal IOL implantation were included. Predicted refractive outcomes were calculated based on the current standard formulas and a new formula developed for TK using K and TK, which were obtained from a swept-source optical biometer. At 2-month postoperatively, median absolute prediction errors (MedAEs) and proportion of eyes within ± 0.50 diopters (D) of predicted postoperative spherical equivalent (SE) refraction were analyzed. There was no significant difference between MedAEs or proportion of eyes within ± 0.50D of predicted refraction from K and TK in each formula. In TFNT00 and 839MP IOL cases, there was no difference between MedAEs from K and TK using any formula. In 829MP IOL cases, MedAE from TK was significantly larger than that from K in Barrett Universal II/Barrett TK Universal II (P = 0.033). In 677MY IOL cases, MedAE from TK was significantly larger than that from K in Haigis (P = 0.020) and Holladay 2 (P = 0.006) formulas. In the subgroup analysis for IOL, there was no difference between the proportion of eyes within ± 0.50 D of predicted refraction from K and TK using any formula. TFNT00 and 839MP IOLs were favorable with TK, with 677MY IOL with K and 829MP IOL being in a neutral position, which necessitates the study that investigates the accuracy of the new TK technology.Hun LeeJae Lim ChungYoung Jun KimJae Yong KimHungwon TchahNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Hun Lee Jae Lim Chung Young Jun Kim Jae Yong Kim Hungwon Tchah Prediction accuracy of standard and total keratometry by swept-source optical biometer for multifocal intraocular lens power calculation
description	Abstract We aimed to compare the refractive outcomes of cataract surgery with diffractive multifocal intraocular lenses (IOLs) using standard keratometry (K) and total keratometry (TK). In this retrospective observational case series study, a total of 302 patients who underwent cataract surgery with multifocal IOL implantation were included. Predicted refractive outcomes were calculated based on the current standard formulas and a new formula developed for TK using K and TK, which were obtained from a swept-source optical biometer. At 2-month postoperatively, median absolute prediction errors (MedAEs) and proportion of eyes within ± 0.50 diopters (D) of predicted postoperative spherical equivalent (SE) refraction were analyzed. There was no significant difference between MedAEs or proportion of eyes within ± 0.50D of predicted refraction from K and TK in each formula. In TFNT00 and 839MP IOL cases, there was no difference between MedAEs from K and TK using any formula. In 829MP IOL cases, MedAE from TK was significantly larger than that from K in Barrett Universal II/Barrett TK Universal II (P = 0.033). In 677MY IOL cases, MedAE from TK was significantly larger than that from K in Haigis (P = 0.020) and Holladay 2 (P = 0.006) formulas. In the subgroup analysis for IOL, there was no difference between the proportion of eyes within ± 0.50 D of predicted refraction from K and TK using any formula. TFNT00 and 839MP IOLs were favorable with TK, with 677MY IOL with K and 829MP IOL being in a neutral position, which necessitates the study that investigates the accuracy of the new TK technology.
format	article
author	Hun Lee Jae Lim Chung Young Jun Kim Jae Yong Kim Hungwon Tchah
author_facet	Hun Lee Jae Lim Chung Young Jun Kim Jae Yong Kim Hungwon Tchah
author_sort	Hun Lee
title	Prediction accuracy of standard and total keratometry by swept-source optical biometer for multifocal intraocular lens power calculation
title_short	Prediction accuracy of standard and total keratometry by swept-source optical biometer for multifocal intraocular lens power calculation
title_full	Prediction accuracy of standard and total keratometry by swept-source optical biometer for multifocal intraocular lens power calculation
title_fullStr	Prediction accuracy of standard and total keratometry by swept-source optical biometer for multifocal intraocular lens power calculation
title_full_unstemmed	Prediction accuracy of standard and total keratometry by swept-source optical biometer for multifocal intraocular lens power calculation
title_sort	prediction accuracy of standard and total keratometry by swept-source optical biometer for multifocal intraocular lens power calculation
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/dd75375445424dc688167367724911a3
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Prediction accuracy of standard and total keratometry by swept-source optical biometer for multifocal intraocular lens power calculation

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