AIM:To investigate the efficacy related factors for idiopathic macular hole after vitrectomy.

METHODS:One hundred cases(100 eyes)with idiopathic macular hole treated in our hospital from May 2012 to September 2015 underwent vitrectomy were selected. The differences before and after operations on best corrected visual acuity(BCVA)and OCT parameters were compared. Pearson correlation analysis and multiple linear regression analysis were performed on aforementioned parameters.

RESULTS:After treatment,the BCVA(0.357±0.172)was significantly higher than that before treatment(0.137±0.115)(P<0.05). The postoperative basal diameter, minimum diameter, the height of the hole, and the thickness of the retina were significantly lower than those preoperative(P<0.05). Pearson correlation analysis results showed:the postoperative BCVA was negatively correlated with basal diameter(r=-0.397,P<0.01)and minimum diameter(r=-0.397, P<0.01); the postoperative BCVA was positively correlated with the height of the hole(r=0.399,P<0.01), the thickness of the retina(r=0.345,P<0.01), MHI(r=0.318,P=0.001)and HPF(r=0.417, P<0.01). Multivariate linear regression analysis showed that the postoperative BCVA was positively correlated with macular retinal thickness(T=2.323,P=0.022).

CONCLUSION:Vitrectomy for idiopathic macular hole has good effect,and the parameters of OCT examination were highly correlated with the recovery of postoperative visual acuity.