Peripheral laser iridoplasty opens angle in plateau iris by thinning the cross-sectional tissues

Ji Liu,1,2 Tania Lamba,1 David A Belyea1 1Department of Ophthalmology, The George Washington University, Washington DC, USA; 2Yale Eye Center, Yale University, New Haven, CT, USA Abstract: Plateau iris syndrome has been described as persistent angle narrowing or occlusion with intraocular pressure e...

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Autores principales:	Liu J, Lamba T, Belyea DA
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2013
Materias:	Ophthalmology RE1-994
Acceso en línea:	https://doaj.org/article/40c2dd6f1c064742a6d221f2b51f4053
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spelling	oai:doaj.org-article:40c2dd6f1c064742a6d221f2b51f40532021-12-02T04:11:11ZPeripheral laser iridoplasty opens angle in plateau iris by thinning the cross-sectional tissues1177-54671177-5483https://doaj.org/article/40c2dd6f1c064742a6d221f2b51f40532013-09-01T00:00:00Zhttp://www.dovepress.com/peripheral-laser-iridoplasty-opens-angle-in-plateau-iris-by-thinning-t-a14441https://doaj.org/toc/1177-5467https://doaj.org/toc/1177-5483Ji Liu,1,2 Tania Lamba,1 David A Belyea1 1Department of Ophthalmology, The George Washington University, Washington DC, USA; 2Yale Eye Center, Yale University, New Haven, CT, USA Abstract: Plateau iris syndrome has been described as persistent angle narrowing or occlusion with intraocular pressure elevation after peripheral iridotomy due to the abnormal plateau iris configuration. Argon laser peripheral iridoplasty (ALPI) is an effective adjunct procedure to treat plateau iris syndrome. Classic theory suggests that the laser causes the contraction of the far peripheral iris stroma, "pulls" the iris away from the angle, and relieves the iris-angle apposition. We report a case of plateau iris syndrome that was successfully treated with ALPI. Spectral domain optical coherence tomography confirmed the angle was open at areas with laser treatment but remained appositionally closed at untreated areas. Further analysis suggested significant cross-sectional thinning of the iris at laser-treated areas in comparison with untreated areas. The findings indicate that APLI opens the angle, not only by contracting the iris stroma, but also by thinning the iris tissue at the crowded angle. This is consistent with the ALPI technique to aim at the iris as far peripheral as possible. This case also suggests that spectral domain optical coherence tomography is a useful adjunct imaging tool to gonioscopy in assessing the angle condition. Keywords: plateau iris, optic coherence tomography, argon laser peripheral iridoplasty, angle-closure glaucomaLiu JLamba TBelyea DADove Medical PressarticleOphthalmologyRE1-994ENClinical Ophthalmology, Vol 2013, Iss default, Pp 1895-1897 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Ophthalmology RE1-994
spellingShingle	Ophthalmology RE1-994 Liu J Lamba T Belyea DA Peripheral laser iridoplasty opens angle in plateau iris by thinning the cross-sectional tissues
description	Ji Liu,1,2 Tania Lamba,1 David A Belyea1 1Department of Ophthalmology, The George Washington University, Washington DC, USA; 2Yale Eye Center, Yale University, New Haven, CT, USA Abstract: Plateau iris syndrome has been described as persistent angle narrowing or occlusion with intraocular pressure elevation after peripheral iridotomy due to the abnormal plateau iris configuration. Argon laser peripheral iridoplasty (ALPI) is an effective adjunct procedure to treat plateau iris syndrome. Classic theory suggests that the laser causes the contraction of the far peripheral iris stroma, "pulls" the iris away from the angle, and relieves the iris-angle apposition. We report a case of plateau iris syndrome that was successfully treated with ALPI. Spectral domain optical coherence tomography confirmed the angle was open at areas with laser treatment but remained appositionally closed at untreated areas. Further analysis suggested significant cross-sectional thinning of the iris at laser-treated areas in comparison with untreated areas. The findings indicate that APLI opens the angle, not only by contracting the iris stroma, but also by thinning the iris tissue at the crowded angle. This is consistent with the ALPI technique to aim at the iris as far peripheral as possible. This case also suggests that spectral domain optical coherence tomography is a useful adjunct imaging tool to gonioscopy in assessing the angle condition. Keywords: plateau iris, optic coherence tomography, argon laser peripheral iridoplasty, angle-closure glaucoma
format	article
author	Liu J Lamba T Belyea DA
author_facet	Liu J Lamba T Belyea DA
author_sort	Liu J
title	Peripheral laser iridoplasty opens angle in plateau iris by thinning the cross-sectional tissues
title_short	Peripheral laser iridoplasty opens angle in plateau iris by thinning the cross-sectional tissues
title_full	Peripheral laser iridoplasty opens angle in plateau iris by thinning the cross-sectional tissues
title_fullStr	Peripheral laser iridoplasty opens angle in plateau iris by thinning the cross-sectional tissues
title_full_unstemmed	Peripheral laser iridoplasty opens angle in plateau iris by thinning the cross-sectional tissues
title_sort	peripheral laser iridoplasty opens angle in plateau iris by thinning the cross-sectional tissues
publisher	Dove Medical Press
publishDate	2013
url	https://doaj.org/article/40c2dd6f1c064742a6d221f2b51f4053
work_keys_str_mv	AT liuj peripherallaseriridoplastyopensangleinplateauirisbythinningthecrosssectionaltissues AT lambat peripherallaseriridoplastyopensangleinplateauirisbythinningthecrosssectionaltissues AT belyeada peripherallaseriridoplastyopensangleinplateauirisbythinningthecrosssectionaltissues
_version_	1718401363156664320

Peripheral laser iridoplasty opens angle in plateau iris by thinning the cross-sectional tissues

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