Influence of postoperative ectopic inner foveal layer on visual function after removal of idiopathic epiretinal membrane

<h4>Purpose</h4> To investigate the functional and anatomical parameters and their postoperative changes according to the ectopic inner foveal layer (EIFL) staging scheme for idiopathic epiretinal membrane (ERM). <h4>Methods</h4> In this prospective study, patients with idiop...

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Main Authors: Bo Hee Kim, Dong Ik Kim, Ki Woong Bae, Un Chul Park
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2021-01-01
Series:PLoS ONE
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8568108/?tool=EBI
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author Bo Hee Kim
Dong Ik Kim
Ki Woong Bae
Un Chul Park
author_facet Bo Hee Kim
Dong Ik Kim
Ki Woong Bae
Un Chul Park
author_sort Bo Hee Kim
collection DOAJ
description <h4>Purpose</h4> To investigate the functional and anatomical parameters and their postoperative changes according to the ectopic inner foveal layer (EIFL) staging scheme for idiopathic epiretinal membrane (ERM). <h4>Methods</h4> In this prospective study, patients with idiopathic ERM underwent pars plana vitrectomy and ERM removal, and were followed-up for 6 months. The associations of EIFL with pre- and postoperative functional and anatomical parameters were analyzed. <h4>Results</h4> A total of 84 eyes (84 patients) were included: 39 (46.4%), 33 (39.3%), and 12 (14.3%) as EIFL stages 2, 3, and 4, respectively. At 6 months after surgery, the mean best-corrected visual acuity (BCVA) significantly improved in all EIFL stages (P ≤ 0.003); however, metamorphopsia improved only in eyes with EIFL stage 2 (P = 0.039) and 3 (P = 0.011). The aniseikonia and foveal avascular zone (FAZ) area showed no significant postoperative changes in any of the EIFL stages. Both preoperatively and during 6 months after surgery, the EIFL stage showed a significant correlation with BCVA (P ≤ 0.033), metamorphopsia (P ≤ 0.008), central macular thickness (P < 0.001), and FAZ parameters (P ≤ 0.016) at each time point, but not with aniseikonia. Significant correlations of EIFL thickness with BCVA (P = 0.028) and metamorphopsia (P = 0.006) before surgery were not persistent after surgery. <h4>Conclusion</h4> Both pre- and postoperatively, the staging of EIFL, rather than its thickness, is a simple and adequate surrogate marker for visual acuity and metamorphopsia in eyes with idiopathic ERM.
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spelling doaj.art-a2f3780a9b4641959c733902347b30922022-12-21T19:23:14ZengPublic Library of Science (PLoS)PLoS ONE1932-62032021-01-011611Influence of postoperative ectopic inner foveal layer on visual function after removal of idiopathic epiretinal membraneBo Hee KimDong Ik KimKi Woong BaeUn Chul Park<h4>Purpose</h4> To investigate the functional and anatomical parameters and their postoperative changes according to the ectopic inner foveal layer (EIFL) staging scheme for idiopathic epiretinal membrane (ERM). <h4>Methods</h4> In this prospective study, patients with idiopathic ERM underwent pars plana vitrectomy and ERM removal, and were followed-up for 6 months. The associations of EIFL with pre- and postoperative functional and anatomical parameters were analyzed. <h4>Results</h4> A total of 84 eyes (84 patients) were included: 39 (46.4%), 33 (39.3%), and 12 (14.3%) as EIFL stages 2, 3, and 4, respectively. At 6 months after surgery, the mean best-corrected visual acuity (BCVA) significantly improved in all EIFL stages (P ≤ 0.003); however, metamorphopsia improved only in eyes with EIFL stage 2 (P = 0.039) and 3 (P = 0.011). The aniseikonia and foveal avascular zone (FAZ) area showed no significant postoperative changes in any of the EIFL stages. Both preoperatively and during 6 months after surgery, the EIFL stage showed a significant correlation with BCVA (P ≤ 0.033), metamorphopsia (P ≤ 0.008), central macular thickness (P < 0.001), and FAZ parameters (P ≤ 0.016) at each time point, but not with aniseikonia. Significant correlations of EIFL thickness with BCVA (P = 0.028) and metamorphopsia (P = 0.006) before surgery were not persistent after surgery. <h4>Conclusion</h4> Both pre- and postoperatively, the staging of EIFL, rather than its thickness, is a simple and adequate surrogate marker for visual acuity and metamorphopsia in eyes with idiopathic ERM.https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8568108/?tool=EBI
spellingShingle Bo Hee Kim
Dong Ik Kim
Ki Woong Bae
Un Chul Park
Influence of postoperative ectopic inner foveal layer on visual function after removal of idiopathic epiretinal membrane
PLoS ONE
title Influence of postoperative ectopic inner foveal layer on visual function after removal of idiopathic epiretinal membrane
title_full Influence of postoperative ectopic inner foveal layer on visual function after removal of idiopathic epiretinal membrane
title_fullStr Influence of postoperative ectopic inner foveal layer on visual function after removal of idiopathic epiretinal membrane
title_full_unstemmed Influence of postoperative ectopic inner foveal layer on visual function after removal of idiopathic epiretinal membrane
title_short Influence of postoperative ectopic inner foveal layer on visual function after removal of idiopathic epiretinal membrane
title_sort influence of postoperative ectopic inner foveal layer on visual function after removal of idiopathic epiretinal membrane
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8568108/?tool=EBI
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AT kiwoongbae influenceofpostoperativeectopicinnerfoveallayeronvisualfunctionafterremovalofidiopathicepiretinalmembrane
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