Epimacular Inverted Retinal Flap Simulating An Epiretinal Membrane

A 66-year-old man was referred for management of a visually significant epiretinal membrane (ERM) with persistent cystoid macular edema after surgery for recurrent retinal detachment with proliferative vitreoretinopathy. The membrane was noted to be particularly thick and vascularized on preoperative optical coherence tomography. During the subsequent vitrectomy, the "membrane" was found to be an inverted retinal flap and successfully removed. The inverted retinal flap was thought to have been related to retinal slippage during prior surgery. This is the first report of an epimacular inverted flap simulating an ERM and highlights the importance of careful review of preoperative imaging.