Disappearance of myelinated retinal nerve fibers after pars plana vitrectomy.
PURPOSE: To describe a case of extramacular myelinated retinal nerve fibers disappearing after pars plana vitrectomy for an epiretinal membrane and macular edema. DESIGN: Interventional case report. METHODS: A 61-year-old African-American man with extramacular myelinated retinal nerve fibers underwent pars plana vitrectomy for an epiretinal membrane. A posterior vitreous detachment was present preoperatively. Humidified air was used. A gas bubble was placed for an intraoperative macular hole. RESULTS: Nine months after surgery, the myelinated retinal nerve fibers had disappeared. CONCLUSIONS: Loss of myelinated retinal nerve fibers may occur after vitreoretinal surgery. Possible mechanisms include postoperative nerve fiber layer atrophy or ischemia.
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