Elsevier

Ophthalmology

Volume 121, Issue 3, March 2014, Pages 649-655
Ophthalmology

Original article
Vitrectomy with Internal Limiting Membrane Peeling versus No Peeling for Idiopathic Full-Thickness Macular Hole

https://doi.org/10.1016/j.ophtha.2013.10.020Get rights and content

Objective

To determine whether internal limiting membrane (ILM) peeling improves anatomic and functional outcomes of full-thickness macular hole (FTMH) surgery when compared with the no-peeling technique.

Design

Systematic review and individual participant data (IPD) meta-analysis undertaken under the auspices of the Cochrane Eyes and Vision Group. Only randomized controlled trials (RCTs) were included.

Participants and Controls

Patients with idiopathic stage 2, 3, and 4 FTMH undergoing vitrectomy with or without ILM peeling.

Intervention

Macular hole surgery, including vitrectomy and gas endotamponade with or without ILM peeling.

Main Outcome Measures

Primary outcome was best-corrected distance visual acuity (BCdVA) at 6 months postoperatively. Secondary outcomes were BCdVA at 3 and 12 months; best-corrected near visual acuity (BCnVA) at 3, 6, and 12 months; primary (after a single surgery) and final (after >1 surgery) macular hole closure; need for additional surgical interventions; intraoperative and postoperative complications; patient-reported outcomes (PROs) (EuroQol-5D and Vision Function Questionnaire-25 scores at 6 months); and cost-effectiveness.

Results

Four RCTs were identified and included in the review. All RCTs were included in the meta-analysis; IPD were obtained from 3 of the 4 RCTs. No evidence of a difference in BCdVA at 6 months was detected (mean difference, −0.04; 95% confidence interval [CI], −0.12 to 0.03; P = 0.27); however, there was evidence of a difference in BCdVA at 3 months favoring ILM peeling (mean difference, −0.09; 95% CI, −0.17 to −0.02; P = 0.02). There was evidence of an effect favoring ILM peeling with regard to primary (odds ratio [OR], 9.27; 95% CI, 4.98–17.24; P < 0.00001) and final macular hole closure (OR, 3.99; 95% CI, 1.63–9.75; P = 0.02) and less requirement for additional surgery (OR, 0.11; 95% CI, 0.05–0.23; P < 0.00001), with no evidence of a difference between groups with regard to intraoperative or postoperative complications or PROs. The ILM peeling was found to be highly cost-effective.

Conclusions

Available evidence supports ILM peeling as the treatment of choice for patients with idiopathic stage 2, 3, and 4 FTMH.

Section snippets

Methods

We undertook a systematic review and meta-analysis using individual participant data (IPD) under the auspices of the Cochrane Eyes and Vision Group.12

Search Results

The search strategy resulted in 172 titles and abstracts (Fig 1). Four RCTs were identified16, 17, 18, 19, 20; IPD were received from 3 RCTs.16, 17, 18 One RCT had been published only in an abstract form (ARVO Meeting Abstracts 2009;50:5206), and no IPD were available at the time this systematic review and IPD meta-analysis were undertaken. Data from this published abstract could be used for 1 outcome (macular hole closure). The number of patients (eyes) included in the IPD meta-analysis were

Discussion

This was a successful IPD collaboration that enabled the inclusion of results from 3 of the 4 identified randomized trials. This allowed more precise results than for a single study alone, and we have increased the generalizability of the results by including a range of international studies. We also were able to use the IPD to adjust our results for important covariates. We hope to update the review with results from the fourth trial once these data have been published.

Four RCTs16, 17, 18

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    Financial Disclosure(s): The author(s) have no proprietary or commercial interest in any materials discussed in this article.

    Funding: NHS Grampian Endowments Grant. The NHS Grampian had no role in the design and conduct of this research.

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