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Ik Soo Byon, Kang Yeun Pak, Sung Who Park, Ji Eun Lee; Long-Term Follow-Up Results of Idiopathic Epiretinal Membrane. Invest. Ophthalmol. Vis. Sci. 2013;54(15):2808.
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To investigate the long-term follow-up results in idiopathic epiretinal membrane (ERM)
The medical records and optical coherence tomography (OCT) images of patients with idiopathic ERM were reviewed, who had been followed up for 2 years or more without operation. The changes of the best corrected visual acuity (BCVA, LogMAR), central segment macular thickness (CSMT), metamorphopsia, configuration of membrane, and inner segment and outer segment (IS/OS) junctions of photorecepter were evaluated.
Seventy three eyes were enrolled. Mean age was 59.5 ± 12.6 years. Mean LogMAR BCVA and CSMT changed from 0.13 ± 1.7 and 338 ± 65 µm at baseline to 0.16 ± 0.16 and 335 ± 70 µm at 2 years. There were no statistical significances in the changes of BCVA and CSMT during the follow-up period (p=0.09, p=0.40). Seventeen eyes had a metamorphopsia at the first visit, and no one had new metamorphopsia during the follow-up. ERM configuration in OCT images showed that forty four eyes were broad attachment type, fifteen partial attachment type, and fourteen pseudohole type. Of broad attachment type, four eyes changed into partial attachment type, two into vitreomacular traction type, one into pseudohole type. IS/OS junction represented that fifty four eyes were intact, seventeen attenuated, and two disrupted at the first visit. Five eyes changed from intact to attenuated, and four from attenuated to intact. Spontaneous detachment of membrane developed in six eyes. Five eyes needed vitrectomy and removal of membrane because of decreased vision and increased macular edema.
Most of idiopathic ERM had have been stable in vision and macular thickness for a long time. However, close observation is recommended because some cases progressed and required membrane peeling.
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