The therapeutic effect of vitrectomy with internal limiting membrane peeling in the treatment of idiopathic macular hole

Objective To estimate the therapeutic effect of vitrectomy with internal limiting membrane peeling in the treatment of idiopathic macular hole,to approach the different viewpoint about the vitrectomy with internal limiting membrane(ILM)peeling in the treatment of idiopathic macular hole.Methods In 71 eyes of 71 cases underwent vitrectomy with ILM peeling for idiopathic macular hole were analyzed retrospectively,air-fluid exchanged and C3F8 tamponaded.The follow-up after the surgery was 12 months.The best corrected visual acuity,mfERG and the rate of concrescence were observed.Results Anatomic closure of the macular hole was achieved in 67(94.37%)patients,59(83.10%)patients achieved a better final visual acuity.Preoperatively,the best corrected visual acuity above 0.1 was 35(49.26%)patients.Postoperatively,the best corrected visual acuity above 0.1 was 65(91.55%)patients(P ＜0.05).After a year,the best corrected visual acuity above 0.5 for 2,3,4 stage of macular hole were 81.25%,15.38%,0,respectively.Amplitude of wave P1 of ring 1 and ring 2 by mfERG was significantly increased in postoperatively than that in preoperatively(P＜0.05).There was no significantly difference for P1 of ring 3,ring 4 and ring 5 between postoperatively and preoperatively(P ＞0.05).Conclusions Parsplana vitrectomy with ILM peeling is an effective method to treat macular hole.But the risks should be treated carefully. Key words: Idiopathic macular hole; Internal limiting membrane; Peeling