Preferential Hyperacuity Perimeter and Prognostic Factors for Metamorphopsia After Idiopathic Epiretinal Membrane Surgery

Significant reduction of metamorphopsia paralleled the improvement of best-corrected visual acuity and central foveal thickness until 6 months after idiopathic epiretinal membrane surgery. The significant predictors for postoperative metamorphopsia outcome were the degree of preoperative metamorphopsia, central foveal thickness, and the photoreceptor IS/OS junction integrity at baseline.