Corrected Intraocular Pressure Variability with Central Corneal Thickness Measurement

Mohamed Attia Ali Ahmed, Ahmed Shawkat Abdelhalim Ophthalmology Department, Faculty of Medicine, Minia University, Minia, EgyptCorrespondence: Mohamed Attia Ali Ahmed Email mohamedattia27@gmail.comPurpose: To evaluate variability in measured intraocular pressure (IOP) values when correlated with cen...

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Autores principales:	Ahmed MAA, Abdelhalim AS
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2020
Materias:	central corneal thickness pachymeter intraocular pressure corneal thickness-corrected intraocular pressure goldmann applanation tonometry anterior-segment optical coherence tomography. Ophthalmology RE1-994
Acceso en línea:	https://doaj.org/article/d22a717394bb48d1b489d2b5bbc53012
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spelling	oai:doaj.org-article:d22a717394bb48d1b489d2b5bbc530122021-12-02T13:35:45ZCorrected Intraocular Pressure Variability with Central Corneal Thickness Measurement1177-5483https://doaj.org/article/d22a717394bb48d1b489d2b5bbc530122020-12-01T00:00:00Zhttps://www.dovepress.com/corrected-intraocular-pressure-variability-with-central-corneal-thickn-peer-reviewed-article-OPTHhttps://doaj.org/toc/1177-5483Mohamed Attia Ali Ahmed, Ahmed Shawkat Abdelhalim Ophthalmology Department, Faculty of Medicine, Minia University, Minia, EgyptCorrespondence: Mohamed Attia Ali Ahmed Email mohamedattia27@gmail.comPurpose: To evaluate variability in measured intraocular pressure (IOP) values when correlated with central corneal thickness measurements obtained by both ultrasonic and optical tools.Patients and Methods: We included 46 eyes of 46 healthy subjects (age range 35– 76 years). Exclusion criteria for the current study were patients with confirmed diagnosis of glaucoma, glaucoma suspect patients and those having corneal opacities, scars or prior cornea-based laser vision correction. Central corneal thickness (CCT) was measured using two methods: ultrasonically (CCT1) by pachymeter and optically (CCT2) using anterior-segment optical coherence tomography (AS-OCT). The IOP was measured in all subjects using Goldmann applanation tonometry (GAT).Results: No significant difference was detected comparing intraocular pressure values and CCT-corrected intraocular pressure (IOPcc1 and IOPcc2) (P=0.47 and P=0.06, respectively) among the study participants. A significant negative correlation was found between corneal thickness-corrected IOP values and the measured central corneal thickness by both optical and ultrasonic tools (P=0.004 and P=0.001, respectively).Conclusion: Intraocular pressure appears to be dependent and positively correlated with CCT changes. However, this does not appear to depend largely on methods used for measuring the CCT in the current study. Corrected intraocular pressure is negatively correlated to both ultrasonically and optically measured central corneal thickness.Keywords: central corneal thickness, pachymeter, intraocular pressure, corneal thickness-corrected intraocular pressure, Goldmann applanation tonometry, anterior-segment optical coherence tomographyAhmed MAAAbdelhalim ASDove Medical Pressarticlecentral corneal thicknesspachymeterintraocular pressurecorneal thickness-corrected intraocular pressuregoldmann applanation tonometryanterior-segment optical coherence tomography.OphthalmologyRE1-994ENClinical Ophthalmology, Vol Volume 14, Pp 4501-4506 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	central corneal thickness pachymeter intraocular pressure corneal thickness-corrected intraocular pressure goldmann applanation tonometry anterior-segment optical coherence tomography. Ophthalmology RE1-994
spellingShingle	central corneal thickness pachymeter intraocular pressure corneal thickness-corrected intraocular pressure goldmann applanation tonometry anterior-segment optical coherence tomography. Ophthalmology RE1-994 Ahmed MAA Abdelhalim AS Corrected Intraocular Pressure Variability with Central Corneal Thickness Measurement
description	Mohamed Attia Ali Ahmed, Ahmed Shawkat Abdelhalim Ophthalmology Department, Faculty of Medicine, Minia University, Minia, EgyptCorrespondence: Mohamed Attia Ali Ahmed Email mohamedattia27@gmail.comPurpose: To evaluate variability in measured intraocular pressure (IOP) values when correlated with central corneal thickness measurements obtained by both ultrasonic and optical tools.Patients and Methods: We included 46 eyes of 46 healthy subjects (age range 35– 76 years). Exclusion criteria for the current study were patients with confirmed diagnosis of glaucoma, glaucoma suspect patients and those having corneal opacities, scars or prior cornea-based laser vision correction. Central corneal thickness (CCT) was measured using two methods: ultrasonically (CCT1) by pachymeter and optically (CCT2) using anterior-segment optical coherence tomography (AS-OCT). The IOP was measured in all subjects using Goldmann applanation tonometry (GAT).Results: No significant difference was detected comparing intraocular pressure values and CCT-corrected intraocular pressure (IOPcc1 and IOPcc2) (P=0.47 and P=0.06, respectively) among the study participants. A significant negative correlation was found between corneal thickness-corrected IOP values and the measured central corneal thickness by both optical and ultrasonic tools (P=0.004 and P=0.001, respectively).Conclusion: Intraocular pressure appears to be dependent and positively correlated with CCT changes. However, this does not appear to depend largely on methods used for measuring the CCT in the current study. Corrected intraocular pressure is negatively correlated to both ultrasonically and optically measured central corneal thickness.Keywords: central corneal thickness, pachymeter, intraocular pressure, corneal thickness-corrected intraocular pressure, Goldmann applanation tonometry, anterior-segment optical coherence tomography
format	article
author	Ahmed MAA Abdelhalim AS
author_facet	Ahmed MAA Abdelhalim AS
author_sort	Ahmed MAA
title	Corrected Intraocular Pressure Variability with Central Corneal Thickness Measurement
title_short	Corrected Intraocular Pressure Variability with Central Corneal Thickness Measurement
title_full	Corrected Intraocular Pressure Variability with Central Corneal Thickness Measurement
title_fullStr	Corrected Intraocular Pressure Variability with Central Corneal Thickness Measurement
title_full_unstemmed	Corrected Intraocular Pressure Variability with Central Corneal Thickness Measurement
title_sort	corrected intraocular pressure variability with central corneal thickness measurement
publisher	Dove Medical Press
publishDate	2020
url	https://doaj.org/article/d22a717394bb48d1b489d2b5bbc53012
work_keys_str_mv	AT ahmedmaa correctedintraocularpressurevariabilitywithcentralcornealthicknessmeasurement AT abdelhalimas correctedintraocularpressurevariabilitywithcentralcornealthicknessmeasurement
_version_	1718392702761959424

Corrected Intraocular Pressure Variability with Central Corneal Thickness Measurement

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