망막앞막 수술 후 초기 황반 오목의 회복과 장기 시력예후의 관계

Abstract

Purpose: We investigated correlations between early foveal contour recovery after idiopathic epiretinal membrane (iERM) surgery and visual improvement. Methods: We retrospectively reviewed the medical records of patients who had iERM surgery between June 2015 and June 2017. The patients were sorted into two groups (recovery and non-recovery groups) according to foveal changes within 1 month of surgery. We compared the best-corrected visual acuity (logarithm of the minimum angle of resolution) and central macular thickness (CMT) and their changes from the pre-operative state at 1, 2, 3, 6, and 12 months after surgery for the two groups. The pre-operative optical coherence tomography and fluorescein angiography features were also compared. Results: A total of 43 patients were enrolled. There were 16 patients in the recovery group, and 27 patients in the non-recovery group. There was greater visual improvement in the recovery group at all time points compared to that in the non-recovery group. The differences were statistically significant at post-operative 2, 6, and 12 months (p = 0.036, p = 0.023, and p = 0.008, respectively). In addition, there were a significantly larger CMT reductions in the recovery group at all time points compared to that in the non-recovery group (p = 0.006, p = 0.010, p < 0.001, p = 0.010, and p = 0.015, respectively). Pre-operative inner retinal thickening on optical coherence tomography was significantly associated with foveal contour recovery. Conclusions: During one year of follow-up, better visual improvement was observed in patients with early foveal pit contour recovery after iERM surgery.