황반부 망막앞막 환자에서 유리체절제술 시 시력 호전에 관련된 예후인자

Prognostic Factors in Vitrectomy for Macular Epiretinal Membrane

Purpose: To identify prognostic factors associated with a favorable outcome after vitrectomy for patients with macular epiretinal membrane (ERM). Methods: The authors retrospectively reviewed the records of 63 patients (64 eyes) with macular ERM, who were treated by vitrectomy between 2003 and 2008, and followed for more than 6 months. Results: The mean follow-up period was 13.21 ± 9.11 months and the mean best corrected visual acuity after vitrectomy was log MAR 0.32 ± 0.34. Univariate analysis revealed the patients in the group with a postoperative log MAR of 0.3 or better had better preoperative visual acuity and shorter symptom duration; multivariate analysis revealed the same results. In 24 eyes, intraretinal structures which contained pseudoholes, intraretinal cysts, retinal folds and vitreoretinal traction were analyzed with Cirrus HD-OCT, however, there was no correlation with visual acuity after vitrectomy. Conclusions: The present study demonstrated vitrectomy for macular ERM resulted in favorable visual improvement. The preoperative visual acuity and symptom duration were a significant prognostic factor. J Korean Ophthalmol Soc 2011;52(11):1302-1307