Changes in neurophysiologic markers of visual processing following beneficial anti-VEGF treatment in macular degeneration

Pasi Vottonen,1 Kai Kaarniranta,1,2 Ari Pääkkönen,3 Ina M Tarkka41Department of Ophthalmology, Kuopio University Hospital, Kuopio, Finland; 2Department of Ophthalmology, Institute of Clinical Medicine, University of Eastern Finland, Kuopio, Finland; 3Department...

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Autores principales: Vottonen P, Kaarniranta K, Pääkkönen A, Tarkka IM
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Lenguaje:EN
Publicado: Dove Medical Press 2013
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spelling oai:doaj.org-article:1df606d0fac94a818d87d192228ba31f2021-12-02T00:56:43ZChanges in neurophysiologic markers of visual processing following beneficial anti-VEGF treatment in macular degeneration1177-54671177-5483https://doaj.org/article/1df606d0fac94a818d87d192228ba31f2013-02-01T00:00:00Zhttp://www.dovepress.com/changes-in-neurophysiologic-markers-of-visual-processing-following-ben-a12310https://doaj.org/toc/1177-5467https://doaj.org/toc/1177-5483Pasi Vottonen,1 Kai Kaarniranta,1,2 Ari Pääkkönen,3 Ina M Tarkka41Department of Ophthalmology, Kuopio University Hospital, Kuopio, Finland; 2Department of Ophthalmology, Institute of Clinical Medicine, University of Eastern Finland, Kuopio, Finland; 3Department of Clinical Neurophysiology, Institute of Clinical Medicine, University of Eastern Finland, Kuopio, Finland; 4Department of Health Sciences, University of Jyväskylä, Jyväskylä, FinlandPurpose: Antivascular endothelial growth factor (VEGF) agents have been shown to improve visual acuity and prevent vision loss in exudative age-related macular degeneration. As the vision improves relatively quickly in response to intravitreal injections, we wanted to know whether this improvement is reflected in electrophysiological markers of visual cortical processing.Patients and methods: Our interventional case series included six elderly patients who underwent injection treatment to the affected eye. Their visual acuity, tomographic images of retinal thickness, and visual evoked potentials (VEP) were assessed before treatment and six weeks after the last injection.Results: All patients showed improved visual acuity and reduced retinal fluid after the treatment. All but one patient showed increased VEP P100 component amplitudes and/or shortened latencies in the treated eye. These VEP changes were consistent with improved vision while the untreated eyes showed no changes.Conclusions: Our results indicate that antivascular endothelial growth factor injections improved visual function of the treated eyes both in the level of the retina and in the level of visual cortical processing.Keywords: age-related eye diseases, exudative age-related macular degeneration, visual evoked potentials, scalp-recorded EEG, visual acuityVottonen PKaarniranta KPääkkönen ATarkka IMDove Medical PressarticleOphthalmologyRE1-994ENClinical Ophthalmology, Vol 2013, Iss default, Pp 437-442 (2013)
institution DOAJ
collection DOAJ
language EN
topic Ophthalmology
RE1-994
spellingShingle Ophthalmology
RE1-994
Vottonen P
Kaarniranta K
Pääkkönen A
Tarkka IM
Changes in neurophysiologic markers of visual processing following beneficial anti-VEGF treatment in macular degeneration
description Pasi Vottonen,1 Kai Kaarniranta,1,2 Ari Pääkkönen,3 Ina M Tarkka41Department of Ophthalmology, Kuopio University Hospital, Kuopio, Finland; 2Department of Ophthalmology, Institute of Clinical Medicine, University of Eastern Finland, Kuopio, Finland; 3Department of Clinical Neurophysiology, Institute of Clinical Medicine, University of Eastern Finland, Kuopio, Finland; 4Department of Health Sciences, University of Jyväskylä, Jyväskylä, FinlandPurpose: Antivascular endothelial growth factor (VEGF) agents have been shown to improve visual acuity and prevent vision loss in exudative age-related macular degeneration. As the vision improves relatively quickly in response to intravitreal injections, we wanted to know whether this improvement is reflected in electrophysiological markers of visual cortical processing.Patients and methods: Our interventional case series included six elderly patients who underwent injection treatment to the affected eye. Their visual acuity, tomographic images of retinal thickness, and visual evoked potentials (VEP) were assessed before treatment and six weeks after the last injection.Results: All patients showed improved visual acuity and reduced retinal fluid after the treatment. All but one patient showed increased VEP P100 component amplitudes and/or shortened latencies in the treated eye. These VEP changes were consistent with improved vision while the untreated eyes showed no changes.Conclusions: Our results indicate that antivascular endothelial growth factor injections improved visual function of the treated eyes both in the level of the retina and in the level of visual cortical processing.Keywords: age-related eye diseases, exudative age-related macular degeneration, visual evoked potentials, scalp-recorded EEG, visual acuity
format article
author Vottonen P
Kaarniranta K
Pääkkönen A
Tarkka IM
author_facet Vottonen P
Kaarniranta K
Pääkkönen A
Tarkka IM
author_sort Vottonen P
title Changes in neurophysiologic markers of visual processing following beneficial anti-VEGF treatment in macular degeneration
title_short Changes in neurophysiologic markers of visual processing following beneficial anti-VEGF treatment in macular degeneration
title_full Changes in neurophysiologic markers of visual processing following beneficial anti-VEGF treatment in macular degeneration
title_fullStr Changes in neurophysiologic markers of visual processing following beneficial anti-VEGF treatment in macular degeneration
title_full_unstemmed Changes in neurophysiologic markers of visual processing following beneficial anti-VEGF treatment in macular degeneration
title_sort changes in neurophysiologic markers of visual processing following beneficial anti-vegf treatment in macular degeneration
publisher Dove Medical Press
publishDate 2013
url https://doaj.org/article/1df606d0fac94a818d87d192228ba31f
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