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Preoperative Vision, Gender, and Operation Time Predict Visual Improvement After Epiretinal Membrane Vitrectomy: A Retrospective Study

Authors Bair H, Kung WH, Lai CT, Lin CJ, Chen HS, Chang CH, Lin JM, Hsia NY, Chen WL, Tien PT, Wu WC, Tsai YY

Received 29 November 2020

Accepted for publication 21 January 2021

Published 24 February 2021 Volume 2021:15 Pages 807—814


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 2

Editor who approved publication: Dr Scott Fraser

Henry Bair,1,2 Wei-Hsun Kung,1 Chun-Ting Lai,1,* Chun-Ju Lin,1,3,4,* Huan-Sheng Chen,5 Cheng-Hsien Chang,1 Jane-Ming Lin,1 Ning-Yi Hsia,1 Wen-Lu Chen,1 Peng-Tai Tien,1,6 Wen-Chuan Wu,1 Yi-Yu Tsai1,3,4

1Department of Ophthalmology, China Medical University Hospital, China Medical University, Taichung, Taiwan; 2Stanford University School of Medicine, Stanford, CA, USA; 3School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan; 4Department of Optometry, Asia University, Taichung, Taiwan; 5An-Shin Dialysis Center, NephroCare Ltd., Fresenius Medical Care, Taichung, Taiwan; 6Graduate Institute of Clinical Medical Science, China Medical University, Taichung, Taiwan

*These authors contributed equally to this work

Correspondence: Chun-Ju Lin; Chun-Ting Lai
Department of Ophthalmology, China Medical University Hospital, 2 Yuh-Der Road, Taichung City, 40447, Taiwan
Tel +886-4-22052121, ext. 1141
Fax +886-4-22059265

Background: To evaluate the efficacy of micro-incision vitrectomy surgery using a non-contact wide-angle viewing system for fovea-attached type epiretinal membrane, and to report the factors influencing the outcome.
Methods: A retrospective, comparative case series that included 50 patients with fovea-attached type epiretinal membrane who received micro-incision vitrectomy surgery using a non-contact wide-angle viewing system.
Results: All patients were followed-up for a minimum of 12 months. Seven cases were classified as group 1A (mainly outer retinal thickening), 17 were group 1B (more tenting of outer retina and distorted inner retina), and 26 were group 1C (prominent inner retina thickening and inward tenting of outer retina). Outcome measures included operation time, recurrent rate, postoperative BCVA, and CRT. The mean operative time was 26.2 minutes. The mean change of BCVA (LogMAR) was − 0.43 (p< 0.001). The mean change of CRT was 135.3 μm (p< 0.001). The mean change of CRT was significantly higher in group 1C. Worse preoperative BCVA, male gender, and longer operative time can predict better postoperative BCVA found by multivariate logistic regression and multiple regression models.
Conclusion: Significant improvement in BCVA and CRT is noted after micro-incision vitrectomy surgery to operate fovea-attached type epiretinal membranes. Worse preoperative BCVA, male, and longer operation time could predict better improvement. These findings may assist surgeons in better evaluating the potential of this method to help their patients with epiretinal membranes.

Keywords: fovea-attached type epiretinal membrane, gender, micro-incision vitrectomy surgery, operation time, preoperative vision, wide-angle viewing system

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