The utility of rebound tonometer in late elderly subjects

Rei Sakata,1,2 Jiro Numaga1 1Tokyo Metropolitan Geriatric Hospital, Tokyo, Japan; 2Department of Ophthalmology, University of Tokyo, Graduate School of Medicine, Tokyo, Japan Background: To compare intraocular pressure (IOP) readings using the Icare rebound tonometer (RBT) versus the Goldmann appla...

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Autores principales:	Sakata R, Numaga J
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2014
Materias:	rebound tonometer Goldmann applanation tonometer the late elderly central corneal thickness Geriatrics RC952-954.6
Acceso en línea:	https://doaj.org/article/1f77978e9bfc4e77ab62e65f37139b95
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spelling	oai:doaj.org-article:1f77978e9bfc4e77ab62e65f37139b952021-12-02T00:38:16ZThe utility of rebound tonometer in late elderly subjects1178-1998https://doaj.org/article/1f77978e9bfc4e77ab62e65f37139b952014-01-01T00:00:00Zhttps://www.dovepress.com/the-utility-of-rebound-tonometer-in-late-elderly-subjects-peer-reviewed-article-CIAhttps://doaj.org/toc/1178-1998Rei Sakata,1,2 Jiro Numaga1 1Tokyo Metropolitan Geriatric Hospital, Tokyo, Japan; 2Department of Ophthalmology, University of Tokyo, Graduate School of Medicine, Tokyo, Japan Background: To compare intraocular pressure (IOP) readings using the Icare rebound tonometer (RBT) versus the Goldmann applanation tonometer (GAT) in late elderly (aged 75 years or older) subjects with or without glaucoma, and to evaluate the influence of central corneal thickness (CCT) on IOP readings. Methods: The IOP measurements were obtained using the RBT and GAT, and CCT was measured using a specular-type microscope. Bland–Altman analysis was used to assess the clinical agreement between the two instruments. The influence of CCT adjusted for age on IOP readings was analyzed by multiple linear regression analysis. Results: This study included 58 eyes of 29 normal subjects and 54 eyes of 28 glaucoma patients. The mean age was 80.7±4.3 years (normal subjects) and 83.1±5.1 years (glaucoma patients). The mean IOP readings were 13.6±3.5 mmHg and 13.2±2.8 mmHg (using the RBT and GAT, respectively) for normal subjects, and13.6±3.3 mmHg and 13.5±2.9 mmHg for glaucoma patients. The 95% confidence interval of the differences between the two instruments was –3.3 to 4.0 mmHg for normal subjects and –2.9 to 1.6 mmHg for glaucoma patients. The IOP readings by two instruments were significantly correlated with CCT in eyes with glaucoma (for the RBT, β=0.036 and P=0.002, and for the GAT, β=0.021 and P=0.033) but not in normal eyes. Conclusion: IOP readings measured using the RBT and GAT showed within the allowable range in the late elderly subjects with or without glaucoma. Eyes with glaucoma were correlated closely with CCT using each instrument. Keywords: rebound tonometer, Goldmann applanation tonometer, late elderly, central corneal thicknessSakata RNumaga JDove Medical Pressarticlerebound tonometerGoldmann applanation tonometerthe late elderlycentral corneal thicknessGeriatricsRC952-954.6ENClinical Interventions in Aging, Vol Volume 9, Pp 227-232 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	rebound tonometer Goldmann applanation tonometer the late elderly central corneal thickness Geriatrics RC952-954.6
spellingShingle	rebound tonometer Goldmann applanation tonometer the late elderly central corneal thickness Geriatrics RC952-954.6 Sakata R Numaga J The utility of rebound tonometer in late elderly subjects
description	Rei Sakata,1,2 Jiro Numaga1 1Tokyo Metropolitan Geriatric Hospital, Tokyo, Japan; 2Department of Ophthalmology, University of Tokyo, Graduate School of Medicine, Tokyo, Japan Background: To compare intraocular pressure (IOP) readings using the Icare rebound tonometer (RBT) versus the Goldmann applanation tonometer (GAT) in late elderly (aged 75 years or older) subjects with or without glaucoma, and to evaluate the influence of central corneal thickness (CCT) on IOP readings. Methods: The IOP measurements were obtained using the RBT and GAT, and CCT was measured using a specular-type microscope. Bland–Altman analysis was used to assess the clinical agreement between the two instruments. The influence of CCT adjusted for age on IOP readings was analyzed by multiple linear regression analysis. Results: This study included 58 eyes of 29 normal subjects and 54 eyes of 28 glaucoma patients. The mean age was 80.7±4.3 years (normal subjects) and 83.1±5.1 years (glaucoma patients). The mean IOP readings were 13.6±3.5 mmHg and 13.2±2.8 mmHg (using the RBT and GAT, respectively) for normal subjects, and13.6±3.3 mmHg and 13.5±2.9 mmHg for glaucoma patients. The 95% confidence interval of the differences between the two instruments was –3.3 to 4.0 mmHg for normal subjects and –2.9 to 1.6 mmHg for glaucoma patients. The IOP readings by two instruments were significantly correlated with CCT in eyes with glaucoma (for the RBT, β=0.036 and P=0.002, and for the GAT, β=0.021 and P=0.033) but not in normal eyes. Conclusion: IOP readings measured using the RBT and GAT showed within the allowable range in the late elderly subjects with or without glaucoma. Eyes with glaucoma were correlated closely with CCT using each instrument. Keywords: rebound tonometer, Goldmann applanation tonometer, late elderly, central corneal thickness
format	article
author	Sakata R Numaga J
author_facet	Sakata R Numaga J
author_sort	Sakata R
title	The utility of rebound tonometer in late elderly subjects
title_short	The utility of rebound tonometer in late elderly subjects
title_full	The utility of rebound tonometer in late elderly subjects
title_fullStr	The utility of rebound tonometer in late elderly subjects
title_full_unstemmed	The utility of rebound tonometer in late elderly subjects
title_sort	utility of rebound tonometer in late elderly subjects
publisher	Dove Medical Press
publishDate	2014
url	https://doaj.org/article/1f77978e9bfc4e77ab62e65f37139b95
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The utility of rebound tonometer in late elderly subjects

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