Surgical results of internal limiting membrane flap inversion and internal limiting membrane peeling for macular hole

Hiroya Ota, Hiroshi Kunikata, Naoko Aizawa and Toru Nakazawa

PLOS ONE, 2018, vol. 13, issue 9, 1-11

Abstract: Purpose: The internal limiting membrane (ILM) is a normal part of the retina, and the outcomes of ILM removal have not been fully investigated. ILM flap inversion is a recently developed technique that increases the success rate of macular hole (MH) surgery. Thus, we compared the anatomical closure rate and visual outcome in patients undergoing microincision vitrectomy surgery (MIVS) with ILM flap inversion or conventional ILM peeling for the treatment of MH. Methods: The medical records of 90 eyes with MH were reviewed retrospectively. The patients were classified into two groups based on MIVS procedure (group 1: ILM flap inversion, 46 eyes; group 2: ILM peeling, 44 eyes). Results: Preoperative characteristics were similar in the two groups, and there were no significant differences in 1 month- or 6 month-postoperative VA between the groups (P = 0.25 and P = 0.42, respectively). However, the surgical success rate was significantly higher in group 1 than group 2 (P = 0.04; 46/46: 100% and 41/44: 93%, respectively). Multiple regression analysis revealed that axial length and MH diameter were independent factors predicting 6-month postoperative BCVA in group 2 (P = 0.001 and P = 0.03, respectively), and that MH diameter was an independent factor predicting 6-month postoperative VA in group 1 (P = 0.03). Logistic regression analysis revealed that axial length (OR = 2.11; P = 0.02; area under the curve: 0.94; cut off score: 28.4 mm) was an independent factor indicating surgical failure in group 2. Conclusion: Our results suggest that MIVS with ILM flap inversion might be best suited to treat MH, particularly in patients with high myopia.

Date: 2018
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0203789

DOI: 10.1371/journal.pone.0203789

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