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KMID : 1151620200050010029
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Journal of Retina
2020 Volume.5 No. 1 p.29 ~ p.36
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Early Foveal Pit Contour Recovery after Idiopathic Epiretinal Membrane Surgery as a Long-term Postoperative Visual Prognosis Factor
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Lim Jun-Hyun
Han Yong-Seop
Lim Hyoung-Bin
Lee Sang-Joon
Nam Ki-Yup
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Abstract
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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.
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KEYWORD
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Epiretinal membrane, Fovea, Visual prognosis, Vitrectomy
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