Abstract

Objective To evaluate the full thickness idiopathic macular hole (IMH) closure rates in patients positioning non-supine (NSP) compared with patients positioning face-down (FDP). Methods A computerized search was conducted in the PubMed, Chinese Biomedical Database, China National Knowledge Infrastructure, and VIP database. All the included studies were divided into NSP and FDP group. A total of 9 papers were included in this meta analysis, including 285 eyes (145 eyes with small hole ≤400 μm, 104 eyes with large hole >400 μm) in NSP group and 303 eyes (141 eyes with small hole and 124 eyes with large hole ). RevMan 4.2 software was applied for investigating heterogeneity and meta-analysis, and the risk of publication bias was evaluated. Results Meta analysis indicated that there was statistical significance on closure rates betwen NSP and FDP group [odds ratio (OR)=0.47, 95% confidence interval (CI) 0.26 - 0.84, P=0.01]. The difference of closure rates in small macular hole eyes between NSP and FDP group was statistically significant (OR=0.45, 95%CI 0.13 - 1.51; P=0.20). The difference of closure rates in large macular hole eyes between NSP and FDP group was statistically significant (OR=0.35, 95%CI 0.17 - 0.75; P=0.006). Conclusion NSP is equally effective as strict FDP in the repair of small macular hole. Post-operative FDP may improve the macular hole closure rates for holes larger than 400 μm. Key words: Diabetic retinopathy/surgery; Prone position; Meta-analysis

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