Single flash electroretinograms of mature cataractous and fellow eyes

Yasuyuki Yamauchi,1 Jun-ichi Mochizuki,1 Akito Hirakata,2 Shigekazu Uda1 1Nihonmatsu Eye Hospital, Edogawa, Tokyo, Japan; 2Kyorin Eye Center, Kyorin University School of Medicine, Tokyo, Japan Background: It is generally stated that opacities of the ocular media, including senile cataract, have li...

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Autores principales:	Yamauchi Y, Mochizuki J, Hirakata A, Uda S
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2016
Materias:	single flash ERG mature cataract Ophthalmology RE1-994
Acceso en línea:	https://doaj.org/article/1e588d0d3b584227b13f9de43377f6de
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spelling	oai:doaj.org-article:1e588d0d3b584227b13f9de43377f6de2021-12-02T02:44:22ZSingle flash electroretinograms of mature cataractous and fellow eyes1177-5483https://doaj.org/article/1e588d0d3b584227b13f9de43377f6de2016-10-01T00:00:00Zhttps://www.dovepress.com/single-flash-electroretinograms-of-mature-cataractous-and-fellow-eyes-peer-reviewed-article-OPTHhttps://doaj.org/toc/1177-5483Yasuyuki Yamauchi,1 Jun-ichi Mochizuki,1 Akito Hirakata,2 Shigekazu Uda1 1Nihonmatsu Eye Hospital, Edogawa, Tokyo, Japan; 2Kyorin Eye Center, Kyorin University School of Medicine, Tokyo, Japan Background: It is generally stated that opacities of the ocular media, including senile cataract, have little effect on the electrical responses of the retina. However, lower amplitudes and longer implicit times are sometimes observed in electroretinograms (ERGs) of patients with mature cataract. Methods: Single flash ERGs of mature cataractous eyes with decimal visual acuity less than 0.1 were compared with those of the fellow eyes with decimal visual acuity better than 0.5, in 105 senile cataract patients. Results: The mean amplitudes and implicit times of ERG a-waves were, respectively, 323.6±95.8 µV and 14.7±3.5 ms in the cataractous eyes and 352.3±96.6 µV and 12.0±1.5 ms in the fellow eyes. The mean amplitudes and implicit times of ERG b-waves were, respectively, 390.1±108.7 µV and 63.4±27.9 ms in the cataractous eyes and 415.3±119.1 µV and 59.0±9.3 ms in the fellow eyes. The mean amplitudes of the a- and b-waves were significantly lower and the mean implicit times of the a- and b-wave were significantly longer in the cataractous eyes as compared to those of the fellow eyes. Postoperative visual acuity was similar in cataractous and fellow eyes. Conclusion: Even though single flash ERG was influenced due to mature cataract, eyes revealed good postoperative visual acuity. Single flash ERG does not always reflect the foveal function and the visual pathway; nevertheless, it remains a reliable guide to evaluate visual prognosis before cataract surgery. Keywords: single flash ERG, mature cataractYamauchi YMochizuki JHirakata AUda SDove Medical Pressarticlesingle flash ERGmature cataractOphthalmologyRE1-994ENClinical Ophthalmology, Vol Volume 10, Pp 2031-2034 (2016)
institution	DOAJ
collection	DOAJ
language	EN
topic	single flash ERG mature cataract Ophthalmology RE1-994
spellingShingle	single flash ERG mature cataract Ophthalmology RE1-994 Yamauchi Y Mochizuki J Hirakata A Uda S Single flash electroretinograms of mature cataractous and fellow eyes
description	Yasuyuki Yamauchi,1 Jun-ichi Mochizuki,1 Akito Hirakata,2 Shigekazu Uda1 1Nihonmatsu Eye Hospital, Edogawa, Tokyo, Japan; 2Kyorin Eye Center, Kyorin University School of Medicine, Tokyo, Japan Background: It is generally stated that opacities of the ocular media, including senile cataract, have little effect on the electrical responses of the retina. However, lower amplitudes and longer implicit times are sometimes observed in electroretinograms (ERGs) of patients with mature cataract. Methods: Single flash ERGs of mature cataractous eyes with decimal visual acuity less than 0.1 were compared with those of the fellow eyes with decimal visual acuity better than 0.5, in 105 senile cataract patients. Results: The mean amplitudes and implicit times of ERG a-waves were, respectively, 323.6±95.8 µV and 14.7±3.5 ms in the cataractous eyes and 352.3±96.6 µV and 12.0±1.5 ms in the fellow eyes. The mean amplitudes and implicit times of ERG b-waves were, respectively, 390.1±108.7 µV and 63.4±27.9 ms in the cataractous eyes and 415.3±119.1 µV and 59.0±9.3 ms in the fellow eyes. The mean amplitudes of the a- and b-waves were significantly lower and the mean implicit times of the a- and b-wave were significantly longer in the cataractous eyes as compared to those of the fellow eyes. Postoperative visual acuity was similar in cataractous and fellow eyes. Conclusion: Even though single flash ERG was influenced due to mature cataract, eyes revealed good postoperative visual acuity. Single flash ERG does not always reflect the foveal function and the visual pathway; nevertheless, it remains a reliable guide to evaluate visual prognosis before cataract surgery. Keywords: single flash ERG, mature cataract
format	article
author	Yamauchi Y Mochizuki J Hirakata A Uda S
author_facet	Yamauchi Y Mochizuki J Hirakata A Uda S
author_sort	Yamauchi Y
title	Single flash electroretinograms of mature cataractous and fellow eyes
title_short	Single flash electroretinograms of mature cataractous and fellow eyes
title_full	Single flash electroretinograms of mature cataractous and fellow eyes
title_fullStr	Single flash electroretinograms of mature cataractous and fellow eyes
title_full_unstemmed	Single flash electroretinograms of mature cataractous and fellow eyes
title_sort	single flash electroretinograms of mature cataractous and fellow eyes
publisher	Dove Medical Press
publishDate	2016
url	https://doaj.org/article/1e588d0d3b584227b13f9de43377f6de
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Single flash electroretinograms of mature cataractous and fellow eyes

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