A new device to noninvasively estimate the intraocular pressure produced during ocular compression

Michael S Korenfeld,1,2 David K Dueker3 1Comprehensive Eye Care, Ltd., 2Department of Ophthalmology and Visual Sciences, Washington University, Washington, MO, USA; 3Hamad Medical Corporation, Doha, Qatar Purpose: To describe a noninvasive instrument that estimates intraocular pressure during epis...

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Autores principales:	Korenfeld MS, Dueker DK
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2016
Materias:	Glaucoma Intraocular Pressure Tonometer Ocular Compression Ophthalmology RE1-994
Acceso en línea:	https://doaj.org/article/22d91a1f1b0649178616cec16930e187
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spelling	oai:doaj.org-article:22d91a1f1b0649178616cec16930e1872021-12-02T04:50:52ZA new device to noninvasively estimate the intraocular pressure produced during ocular compression1177-5483https://doaj.org/article/22d91a1f1b0649178616cec16930e1872016-01-01T00:00:00Zhttps://www.dovepress.com/a-new-device-to-noninvasively-estimate-the-intraocular-pressure-produc-peer-reviewed-article-OPTHhttps://doaj.org/toc/1177-5483Michael S Korenfeld,1,2 David K Dueker3 1Comprehensive Eye Care, Ltd., 2Department of Ophthalmology and Visual Sciences, Washington University, Washington, MO, USA; 3Hamad Medical Corporation, Doha, Qatar Purpose: To describe a noninvasive instrument that estimates intraocular pressure during episodes of external globe compression and to demonstrate the accuracy and reliability of this device by comparing it to the intraocular pressures simultaneously and manometrically measured in cannulated eyes. Methods: A thin fluid-filled bladder was constructed from flexible and inelastic plastic sheeting and was connected to a pressure transducer with high pressure tubing. The output of the pressure transducer was sent to an amplifier and recorded. This device was validated by measuring induced pressure in the fluid-filled bladder while digital pressure was applied to one surface, and the other surface was placed directly against a human cadaver eye or in vivo pig eye. The human cadaver and in vivo pig eyes were each cannulated to provide a manometric intraocular pressure control. Results: The measurements obtained with the newly described device were within ~5% of simultaneously measured manometric intraocular pressures in both a human cadaver and in vivo pig eye model for a pressure range of ~15–100 mmHg. Conclusion: This novel noninvasive device is useful for estimating the intraocular pressure transients induced during any form of external globe compression; this is a clinical setting where no other devices can be used to estimate intraocular pressure. Keywords: glaucoma, intraocular pressure, tonometer, ocular compressionKorenfeld MSDueker DKDove Medical PressarticleGlaucomaIntraocular PressureTonometerOcular CompressionOphthalmologyRE1-994ENClinical Ophthalmology, Vol 2016, Iss Issue 1, Pp 71-77 (2016)
institution	DOAJ
collection	DOAJ
language	EN
topic	Glaucoma Intraocular Pressure Tonometer Ocular Compression Ophthalmology RE1-994
spellingShingle	Glaucoma Intraocular Pressure Tonometer Ocular Compression Ophthalmology RE1-994 Korenfeld MS Dueker DK A new device to noninvasively estimate the intraocular pressure produced during ocular compression
description	Michael S Korenfeld,1,2 David K Dueker3 1Comprehensive Eye Care, Ltd., 2Department of Ophthalmology and Visual Sciences, Washington University, Washington, MO, USA; 3Hamad Medical Corporation, Doha, Qatar Purpose: To describe a noninvasive instrument that estimates intraocular pressure during episodes of external globe compression and to demonstrate the accuracy and reliability of this device by comparing it to the intraocular pressures simultaneously and manometrically measured in cannulated eyes. Methods: A thin fluid-filled bladder was constructed from flexible and inelastic plastic sheeting and was connected to a pressure transducer with high pressure tubing. The output of the pressure transducer was sent to an amplifier and recorded. This device was validated by measuring induced pressure in the fluid-filled bladder while digital pressure was applied to one surface, and the other surface was placed directly against a human cadaver eye or in vivo pig eye. The human cadaver and in vivo pig eyes were each cannulated to provide a manometric intraocular pressure control. Results: The measurements obtained with the newly described device were within ~5% of simultaneously measured manometric intraocular pressures in both a human cadaver and in vivo pig eye model for a pressure range of ~15–100 mmHg. Conclusion: This novel noninvasive device is useful for estimating the intraocular pressure transients induced during any form of external globe compression; this is a clinical setting where no other devices can be used to estimate intraocular pressure. Keywords: glaucoma, intraocular pressure, tonometer, ocular compression
format	article
author	Korenfeld MS Dueker DK
author_facet	Korenfeld MS Dueker DK
author_sort	Korenfeld MS
title	A new device to noninvasively estimate the intraocular pressure produced during ocular compression
title_short	A new device to noninvasively estimate the intraocular pressure produced during ocular compression
title_full	A new device to noninvasively estimate the intraocular pressure produced during ocular compression
title_fullStr	A new device to noninvasively estimate the intraocular pressure produced during ocular compression
title_full_unstemmed	A new device to noninvasively estimate the intraocular pressure produced during ocular compression
title_sort	new device to noninvasively estimate the intraocular pressure produced during ocular compression
publisher	Dove Medical Press
publishDate	2016
url	https://doaj.org/article/22d91a1f1b0649178616cec16930e187
work_keys_str_mv	AT korenfeldms anewdevicetononinvasivelyestimatetheintraocularpressureproducedduringocularcompression AT duekerdk anewdevicetononinvasivelyestimatetheintraocularpressureproducedduringocularcompression AT korenfeldms newdevicetononinvasivelyestimatetheintraocularpressureproducedduringocularcompression AT duekerdk newdevicetononinvasivelyestimatetheintraocularpressureproducedduringocularcompression
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A new device to noninvasively estimate the intraocular pressure produced during ocular compression

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