Comparison of different intraocular pressure measurement techniques in normal eyes and post small incision lenticule extraction

Mohamed Hosny, Fayrouz Aboalazayem, Hoda El Shiwy, Mohsen Salem Department of Ophthalmology, Cairo University, Giza, Egypt Purpose: The purpose of the study was to determine the accuracy of intraocular pressure (IOP) measurement after small incision lenticule extraction (SMILE) using Goldmann appl...

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Autores principales:	Hosny M, Aboalazayem F, El Shiwy H, Salem M
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2017
Materias:	Ocular response analyzer small incision lenticule extraction and corneal hysteresis Ophthalmology RE1-994
Acceso en línea:	https://doaj.org/article/4e71589e5c354a039da06cc89c89a013
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spelling	oai:doaj.org-article:4e71589e5c354a039da06cc89c89a0132021-12-02T06:03:46ZComparison of different intraocular pressure measurement techniques in normal eyes and post small incision lenticule extraction1177-5483https://doaj.org/article/4e71589e5c354a039da06cc89c89a0132017-07-01T00:00:00Zhttps://www.dovepress.com/1comparison-of-different-intraocular-pressure-measurement-techniq-peer-reviewed-article-OPTHhttps://doaj.org/toc/1177-5483Mohamed Hosny, Fayrouz Aboalazayem, Hoda El Shiwy, Mohsen Salem Department of Ophthalmology, Cairo University, Giza, Egypt Purpose: The purpose of the study was to determine the accuracy of intraocular pressure (IOP) measurement after small incision lenticule extraction (SMILE) using Goldmann applanation tonometry (GAT) and ocular response analyzer (ORA).Methods: This is a prospective clinical study that was conducted on 30 eyes in the interval between February 2016 and September 2016. The age of the patients ranged between 19 and 40 years. The patients underwent SMILE surgery using the femto laser. IOP was measured preoperatively and 1 month postoperatively by both techniques, the GAT and the ORA.Results: GAT recorded lower values than ORA values (IOPcc) preoperatively and postoperatively and the difference was statistically significant. Both GAT and ORA IOP measurements decreased after SMILE. There was no statistically significant correlation between the changes in the GAT and ORA readings and the postoperative corneal pachymetry or the lenticule thickness. Both corneal hysteresis and corneal resistance factor showed significant decline after the procedure, which correlated with the lenticule thickness.Conclusion: SMILE causes significant reduction in IOP measurement by ORA and GAT. Corneal biomechanics decreases following SMILE and this correlates with lenticule thickness. Keywords: ocular response analyzer, small incision lenticule extraction, corneal hysteresisHosny MAboalazayem FEl Shiwy HSalem MDove Medical PressarticleOcular response analyzersmall incision lenticule extraction and corneal hysteresisOphthalmologyRE1-994ENClinical Ophthalmology, Vol Volume 11, Pp 1309-1314 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Ocular response analyzer small incision lenticule extraction and corneal hysteresis Ophthalmology RE1-994
spellingShingle	Ocular response analyzer small incision lenticule extraction and corneal hysteresis Ophthalmology RE1-994 Hosny M Aboalazayem F El Shiwy H Salem M Comparison of different intraocular pressure measurement techniques in normal eyes and post small incision lenticule extraction
description	Mohamed Hosny, Fayrouz Aboalazayem, Hoda El Shiwy, Mohsen Salem Department of Ophthalmology, Cairo University, Giza, Egypt Purpose: The purpose of the study was to determine the accuracy of intraocular pressure (IOP) measurement after small incision lenticule extraction (SMILE) using Goldmann applanation tonometry (GAT) and ocular response analyzer (ORA).Methods: This is a prospective clinical study that was conducted on 30 eyes in the interval between February 2016 and September 2016. The age of the patients ranged between 19 and 40 years. The patients underwent SMILE surgery using the femto laser. IOP was measured preoperatively and 1 month postoperatively by both techniques, the GAT and the ORA.Results: GAT recorded lower values than ORA values (IOPcc) preoperatively and postoperatively and the difference was statistically significant. Both GAT and ORA IOP measurements decreased after SMILE. There was no statistically significant correlation between the changes in the GAT and ORA readings and the postoperative corneal pachymetry or the lenticule thickness. Both corneal hysteresis and corneal resistance factor showed significant decline after the procedure, which correlated with the lenticule thickness.Conclusion: SMILE causes significant reduction in IOP measurement by ORA and GAT. Corneal biomechanics decreases following SMILE and this correlates with lenticule thickness. Keywords: ocular response analyzer, small incision lenticule extraction, corneal hysteresis
format	article
author	Hosny M Aboalazayem F El Shiwy H Salem M
author_facet	Hosny M Aboalazayem F El Shiwy H Salem M
author_sort	Hosny M
title	Comparison of different intraocular pressure measurement techniques in normal eyes and post small incision lenticule extraction
title_short	Comparison of different intraocular pressure measurement techniques in normal eyes and post small incision lenticule extraction
title_full	Comparison of different intraocular pressure measurement techniques in normal eyes and post small incision lenticule extraction
title_fullStr	Comparison of different intraocular pressure measurement techniques in normal eyes and post small incision lenticule extraction
title_full_unstemmed	Comparison of different intraocular pressure measurement techniques in normal eyes and post small incision lenticule extraction
title_sort	comparison of different intraocular pressure measurement techniques in normal eyes and post small incision lenticule extraction
publisher	Dove Medical Press
publishDate	2017
url	https://doaj.org/article/4e71589e5c354a039da06cc89c89a013
work_keys_str_mv	AT hosnym comparisonofdifferentintraocularpressuremeasurementtechniquesinnormaleyesandpostsmallincisionlenticuleextraction AT aboalazayemf comparisonofdifferentintraocularpressuremeasurementtechniquesinnormaleyesandpostsmallincisionlenticuleextraction AT elshiwyh comparisonofdifferentintraocularpressuremeasurementtechniquesinnormaleyesandpostsmallincisionlenticuleextraction AT salemm comparisonofdifferentintraocularpressuremeasurementtechniquesinnormaleyesandpostsmallincisionlenticuleextraction
_version_	1718400049905401856

Comparison of different intraocular pressure measurement techniques in normal eyes and post small incision lenticule extraction

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