High correlation of scotopic and photopic electroretinogram components with severity of central retinal artery occlusion

Celso S Matsumoto1,2, Kei Shinoda1, Kazuo Nakatsuka21Department of Ophthalmology, Teikyo University School of Medicine, Tokyo, Japan; 2Department of Ophthalmology, Faculty of Medicine, Oita University, Oita, JapanPurpose: The aim of this study was to determine whether a significant correlation exist...

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Autores principales:	Celso S Matsumoto, Kei Shinoda, Kazuo Nakatsuka
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2011
Materias:	Ophthalmology RE1-994
Acceso en línea:	https://doaj.org/article/49a0ca19c9364f2aa72c15922a0e444b
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spelling	oai:doaj.org-article:49a0ca19c9364f2aa72c15922a0e444b2021-12-02T01:28:22ZHigh correlation of scotopic and photopic electroretinogram components with severity of central retinal artery occlusion1177-54671177-5483https://doaj.org/article/49a0ca19c9364f2aa72c15922a0e444b2011-01-01T00:00:00Zhttp://www.dovepress.com/high-correlation-of-scotopic-and-photopic-electroretinogram-components-a6105https://doaj.org/toc/1177-5467https://doaj.org/toc/1177-5483Celso S Matsumoto1,2, Kei Shinoda1, Kazuo Nakatsuka21Department of Ophthalmology, Teikyo University School of Medicine, Tokyo, Japan; 2Department of Ophthalmology, Faculty of Medicine, Oita University, Oita, JapanPurpose: The aim of this study was to determine whether a significant correlation exists between the scotopic and photopic components of electroretinograms (ERGs) and the degree of circulation disturbances caused by a central retinal artery occlusion (CRAO).Design: Observational clinical study.Participants: Sixteen patients with a CRAO (16 eyes).Methods: The circulatory disturbance in eyes with CRAO was graded as mild (group 1) when the arm-to-retina transmission time was &lt;30 sec and severe (group 2) when the arm-to-retina transmission time was &ge;30 sec. Scotopic and photopic ERG components in eyes with CRAO were compared with those in healthy fellow eyes with respect to the degree of circulation disturbance.Results: The scotopic and photopic b-waves were significantly reduced only in group 2, whereas the amplitudes of the photopic negative response (PhNR) of the photopic cone ERGs were significantly reduced in both groups. The amplitudes of each ERG component, except for the a-wave of the mixed rod-cone ERG, were significantly smaller in group 2 than in group 1.Conclusions: The PhNR was reduced even in group 1 with minimal circulatory disturbance and thus may be a good functional indicator.Keywords: scotopic electroretinogram, photopic electroretinogram, photopic negative response, central retinal artery occlusion, fluorescein angiography Celso S MatsumotoKei ShinodaKazuo NakatsukaDove Medical PressarticleOphthalmologyRE1-994ENClinical Ophthalmology, Vol 2011, Iss default, Pp 115-121 (2011)
institution	DOAJ
collection	DOAJ
language	EN
topic	Ophthalmology RE1-994
spellingShingle	Ophthalmology RE1-994 Celso S Matsumoto Kei Shinoda Kazuo Nakatsuka High correlation of scotopic and photopic electroretinogram components with severity of central retinal artery occlusion
description	Celso S Matsumoto1,2, Kei Shinoda1, Kazuo Nakatsuka21Department of Ophthalmology, Teikyo University School of Medicine, Tokyo, Japan; 2Department of Ophthalmology, Faculty of Medicine, Oita University, Oita, JapanPurpose: The aim of this study was to determine whether a significant correlation exists between the scotopic and photopic components of electroretinograms (ERGs) and the degree of circulation disturbances caused by a central retinal artery occlusion (CRAO).Design: Observational clinical study.Participants: Sixteen patients with a CRAO (16 eyes).Methods: The circulatory disturbance in eyes with CRAO was graded as mild (group 1) when the arm-to-retina transmission time was &lt;30 sec and severe (group 2) when the arm-to-retina transmission time was &ge;30 sec. Scotopic and photopic ERG components in eyes with CRAO were compared with those in healthy fellow eyes with respect to the degree of circulation disturbance.Results: The scotopic and photopic b-waves were significantly reduced only in group 2, whereas the amplitudes of the photopic negative response (PhNR) of the photopic cone ERGs were significantly reduced in both groups. The amplitudes of each ERG component, except for the a-wave of the mixed rod-cone ERG, were significantly smaller in group 2 than in group 1.Conclusions: The PhNR was reduced even in group 1 with minimal circulatory disturbance and thus may be a good functional indicator.Keywords: scotopic electroretinogram, photopic electroretinogram, photopic negative response, central retinal artery occlusion, fluorescein angiography
format	article
author	Celso S Matsumoto Kei Shinoda Kazuo Nakatsuka
author_facet	Celso S Matsumoto Kei Shinoda Kazuo Nakatsuka
author_sort	Celso S Matsumoto
title	High correlation of scotopic and photopic electroretinogram components with severity of central retinal artery occlusion
title_short	High correlation of scotopic and photopic electroretinogram components with severity of central retinal artery occlusion
title_full	High correlation of scotopic and photopic electroretinogram components with severity of central retinal artery occlusion
title_fullStr	High correlation of scotopic and photopic electroretinogram components with severity of central retinal artery occlusion
title_full_unstemmed	High correlation of scotopic and photopic electroretinogram components with severity of central retinal artery occlusion
title_sort	high correlation of scotopic and photopic electroretinogram components with severity of central retinal artery occlusion
publisher	Dove Medical Press
publishDate	2011
url	https://doaj.org/article/49a0ca19c9364f2aa72c15922a0e444b
work_keys_str_mv	AT celsosmatsumoto highcorrelationofscotopicandphotopicelectroretinogramcomponentswithseverityofcentralretinalarteryocclusion AT keishinoda highcorrelationofscotopicandphotopicelectroretinogramcomponentswithseverityofcentralretinalarteryocclusion AT kazuonakatsuka highcorrelationofscotopicandphotopicelectroretinogramcomponentswithseverityofcentralretinalarteryocclusion
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High correlation of scotopic and photopic electroretinogram components with severity of central retinal artery occlusion

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