Intraoperative Electroretinograms before and after Core Vitrectomy.

<h4>Purpose</h4>To evaluate retinal function by intraoperative electroretinograms (ERGs) before and after core vitrectomy.<h4>Design</h4>Retrospective consecutive case series.<h4>Method</h4>Full-field photopic ERGs were recorded prior to the beginning and just aft...

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Main Authors: Kazuma Yagura, Kei Shinoda, Soiti Matsumoto, Gaku Terauchi, Emiko Watanabe, Harue Matsumoto, Goichi Akiyama, Atsushi Mizota, Yozo Miyake
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2016-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0152052
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author Kazuma Yagura
Kei Shinoda
Soiti Matsumoto
Gaku Terauchi
Emiko Watanabe
Harue Matsumoto
Goichi Akiyama
Atsushi Mizota
Yozo Miyake
author_facet Kazuma Yagura
Kei Shinoda
Soiti Matsumoto
Gaku Terauchi
Emiko Watanabe
Harue Matsumoto
Goichi Akiyama
Atsushi Mizota
Yozo Miyake
author_sort Kazuma Yagura
collection DOAJ
description <h4>Purpose</h4>To evaluate retinal function by intraoperative electroretinograms (ERGs) before and after core vitrectomy.<h4>Design</h4>Retrospective consecutive case series.<h4>Method</h4>Full-field photopic ERGs were recorded prior to the beginning and just after core vitrectomy using a sterilized contact lens electrode in 20 eyes that underwent non-complicated vitreous surgery. A light-emitted diode was embedded into the contact lens, and a stimulus of 150 ms on and 350 ms off at 2 Hz was delivered. The amplitudes and latencies of the a-, b-, and d-waves, photopic negative response (PhNR), and oscillatory potentials (OPs) were analyzed. The intraocular temperature at the mid-vitreous was measured at the beginning and just after the surgery with a thermoprobe.<h4>Results</h4>The intraocular temperature was 33.2 ± 1.3°C before and 29.4 ± 1.7°C after the vitrectomy. The amplitudes of the PhNR and OPs were significantly smaller after surgery, and the latencies of all components were prolonged after the surgery. These changes were not significantly correlated with the changes of the temperature.<h4>Conclusion</h4>Retinal function is reduced just after core vitrectomy in conjunction with significant temperature reduction. The differences in the degree of alterations of each ERG component suggests different sensitivity of each type of retinal neuron.
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spelling doaj.art-ee68f031d873419eb6cef23a4a7389182022-12-21T21:30:57ZengPublic Library of Science (PLoS)PLoS ONE1932-62032016-01-01113e015205210.1371/journal.pone.0152052Intraoperative Electroretinograms before and after Core Vitrectomy.Kazuma YaguraKei ShinodaSoiti MatsumotoGaku TerauchiEmiko WatanabeHarue MatsumotoGoichi AkiyamaAtsushi MizotaYozo Miyake<h4>Purpose</h4>To evaluate retinal function by intraoperative electroretinograms (ERGs) before and after core vitrectomy.<h4>Design</h4>Retrospective consecutive case series.<h4>Method</h4>Full-field photopic ERGs were recorded prior to the beginning and just after core vitrectomy using a sterilized contact lens electrode in 20 eyes that underwent non-complicated vitreous surgery. A light-emitted diode was embedded into the contact lens, and a stimulus of 150 ms on and 350 ms off at 2 Hz was delivered. The amplitudes and latencies of the a-, b-, and d-waves, photopic negative response (PhNR), and oscillatory potentials (OPs) were analyzed. The intraocular temperature at the mid-vitreous was measured at the beginning and just after the surgery with a thermoprobe.<h4>Results</h4>The intraocular temperature was 33.2 ± 1.3°C before and 29.4 ± 1.7°C after the vitrectomy. The amplitudes of the PhNR and OPs were significantly smaller after surgery, and the latencies of all components were prolonged after the surgery. These changes were not significantly correlated with the changes of the temperature.<h4>Conclusion</h4>Retinal function is reduced just after core vitrectomy in conjunction with significant temperature reduction. The differences in the degree of alterations of each ERG component suggests different sensitivity of each type of retinal neuron.https://doi.org/10.1371/journal.pone.0152052
spellingShingle Kazuma Yagura
Kei Shinoda
Soiti Matsumoto
Gaku Terauchi
Emiko Watanabe
Harue Matsumoto
Goichi Akiyama
Atsushi Mizota
Yozo Miyake
Intraoperative Electroretinograms before and after Core Vitrectomy.
PLoS ONE
title Intraoperative Electroretinograms before and after Core Vitrectomy.
title_full Intraoperative Electroretinograms before and after Core Vitrectomy.
title_fullStr Intraoperative Electroretinograms before and after Core Vitrectomy.
title_full_unstemmed Intraoperative Electroretinograms before and after Core Vitrectomy.
title_short Intraoperative Electroretinograms before and after Core Vitrectomy.
title_sort intraoperative electroretinograms before and after core vitrectomy
url https://doi.org/10.1371/journal.pone.0152052
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AT keishinoda intraoperativeelectroretinogramsbeforeandaftercorevitrectomy
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AT emikowatanabe intraoperativeelectroretinogramsbeforeandaftercorevitrectomy
AT haruematsumoto intraoperativeelectroretinogramsbeforeandaftercorevitrectomy
AT goichiakiyama intraoperativeelectroretinogramsbeforeandaftercorevitrectomy
AT atsushimizota intraoperativeelectroretinogramsbeforeandaftercorevitrectomy
AT yozomiyake intraoperativeelectroretinogramsbeforeandaftercorevitrectomy