Accuracy of axial length measurements obtained by optical biometry and acoustic biometry in rhegmatogenous retinal detachment: a prospective study

Pear Pongsachareonnont, Sagol Tangjanyatam Vitreoretinal Research Unit, Department of Ophthalmology, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand Purpose: We compared the accuracy of axial length (AL) measurement...

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Autores principales:	Pongsachareonnont P, Tangjanyatam S
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2018
Materias:	IOL biometry phacoemulsification phacovitrectomy cataract surgery biometry Ophthalmology RE1-994
Acceso en línea:	https://doaj.org/article/e5fd94efba234e89b711189745f20444
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spelling	oai:doaj.org-article:e5fd94efba234e89b711189745f204442021-12-02T06:39:39ZAccuracy of axial length measurements obtained by optical biometry and acoustic biometry in rhegmatogenous retinal detachment: a prospective study1177-5483https://doaj.org/article/e5fd94efba234e89b711189745f204442018-05-01T00:00:00Zhttps://www.dovepress.com/accuracy-of-axial-length-measurements-obtained-by-optical-biometry-and-peer-reviewed-article-OPTHhttps://doaj.org/toc/1177-5483Pear Pongsachareonnont, Sagol Tangjanyatam Vitreoretinal Research Unit, Department of Ophthalmology, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand Purpose: We compared the accuracy of axial length (AL) measurement obtained by optical biometry with that obtained by acoustic biometry in eyes with rhegmatogenous retinal detachment (RRD). Patients and methods: This prospective descriptive analytic study measured the AL of eyes with RRD preoperatively and 3 months postoperatively using optical biometry (intraocular lens [IOL] master group) and acoustic biometry (immersion A-scan group). Preoperative and postoperative measurements were compared by paired t-test. The agreement between preoperative and postoperative measurements was analyzed using a Bland–Altman plot. Subgroup analysis of macular involvement status was performed. Results: Twenty-seven eyes were analyzed in this study. The mean AL in the IOL master group was 23.58±0.97 mm preoperatively and 24.17±1.16 mm postoperatively; the mean difference was −0.59±0.90 mm (P = 0.007). The mean AL in the immersion A-scan group was 24.29±1.59 mm preoperatively and 24.27±1.69 mm postoperatively; the mean difference was 0.02±0.48 mm (P = 0.827). Bland–Altman analysis revealed disagreement between preoperative and postoperative AL measurements in both techniques. In subgroup analysis of macula with RRD, there were significant differences between preoperative and postoperative AL measurements in the IOL master group (P = 0.014). Conclusion: Significant underestimation of AL measurement was observed when using the IOL master in eyes with RRD with macular involvement, which could affect IOL power selection. Keywords: IOL biometry, phacoemulsification, phacovitrectomy, cataract surgery biometryPongsachareonnont PTangjanyatam SDove Medical PressarticleIOL biometryphacoemulsificationphacovitrectomycataract surgery biometryOphthalmologyRE1-994ENClinical Ophthalmology, Vol Volume 12, Pp 973-980 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	IOL biometry phacoemulsification phacovitrectomy cataract surgery biometry Ophthalmology RE1-994
spellingShingle	IOL biometry phacoemulsification phacovitrectomy cataract surgery biometry Ophthalmology RE1-994 Pongsachareonnont P Tangjanyatam S Accuracy of axial length measurements obtained by optical biometry and acoustic biometry in rhegmatogenous retinal detachment: a prospective study
description	Pear Pongsachareonnont, Sagol Tangjanyatam Vitreoretinal Research Unit, Department of Ophthalmology, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand Purpose: We compared the accuracy of axial length (AL) measurement obtained by optical biometry with that obtained by acoustic biometry in eyes with rhegmatogenous retinal detachment (RRD). Patients and methods: This prospective descriptive analytic study measured the AL of eyes with RRD preoperatively and 3 months postoperatively using optical biometry (intraocular lens [IOL] master group) and acoustic biometry (immersion A-scan group). Preoperative and postoperative measurements were compared by paired t-test. The agreement between preoperative and postoperative measurements was analyzed using a Bland–Altman plot. Subgroup analysis of macular involvement status was performed. Results: Twenty-seven eyes were analyzed in this study. The mean AL in the IOL master group was 23.58±0.97 mm preoperatively and 24.17±1.16 mm postoperatively; the mean difference was −0.59±0.90 mm (P = 0.007). The mean AL in the immersion A-scan group was 24.29±1.59 mm preoperatively and 24.27±1.69 mm postoperatively; the mean difference was 0.02±0.48 mm (P = 0.827). Bland–Altman analysis revealed disagreement between preoperative and postoperative AL measurements in both techniques. In subgroup analysis of macula with RRD, there were significant differences between preoperative and postoperative AL measurements in the IOL master group (P = 0.014). Conclusion: Significant underestimation of AL measurement was observed when using the IOL master in eyes with RRD with macular involvement, which could affect IOL power selection. Keywords: IOL biometry, phacoemulsification, phacovitrectomy, cataract surgery biometry
format	article
author	Pongsachareonnont P Tangjanyatam S
author_facet	Pongsachareonnont P Tangjanyatam S
author_sort	Pongsachareonnont P
title	Accuracy of axial length measurements obtained by optical biometry and acoustic biometry in rhegmatogenous retinal detachment: a prospective study
title_short	Accuracy of axial length measurements obtained by optical biometry and acoustic biometry in rhegmatogenous retinal detachment: a prospective study
title_full	Accuracy of axial length measurements obtained by optical biometry and acoustic biometry in rhegmatogenous retinal detachment: a prospective study
title_fullStr	Accuracy of axial length measurements obtained by optical biometry and acoustic biometry in rhegmatogenous retinal detachment: a prospective study
title_full_unstemmed	Accuracy of axial length measurements obtained by optical biometry and acoustic biometry in rhegmatogenous retinal detachment: a prospective study
title_sort	accuracy of axial length measurements obtained by optical biometry and acoustic biometry in rhegmatogenous retinal detachment: a prospective study
publisher	Dove Medical Press
publishDate	2018
url	https://doaj.org/article/e5fd94efba234e89b711189745f20444
work_keys_str_mv	AT pongsachareonnontp accuracyofaxiallengthmeasurementsobtainedbyopticalbiometryandacousticbiometryinrhegmatogenousretinaldetachmentaprospectivestudy AT tangjanyatams accuracyofaxiallengthmeasurementsobtainedbyopticalbiometryandacousticbiometryinrhegmatogenousretinaldetachmentaprospectivestudy
_version_	1718399844191567872

Accuracy of axial length measurements obtained by optical biometry and acoustic biometry in rhegmatogenous retinal detachment: a prospective study

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