Funnel plot for evaluating the publication bias.

Abstract

(A) Macular hole closure rate; (B) preoperative best-corrected visual acuity (BCVA); (C) postoperative BCVA; (D) complete recovery rate of external limiting membrane. (A)–(D) Scattered points corresponding to the included studies were mostly distributed within the range of inverted funnel. (C) One point of study in postoperative BCVA was located slightly out of the inverted funnel. A relatively low publication bias could have influenced the results. OR, odds ratio; MD, mean difference; SE, standard error.</p