An epiretinal membrane is a thin scar-like tissue that grows over the macula. Vision is distorted, with straight lines appearing wavy.
Treatment of an epiretinal membrane is not always necessary, especially if symptoms are mild. However, if symptoms are more severe, then a vitrectomy is recommended. Here, the scar tissue and vitreous are removed and replaced with a clear solution. Most patients recover about half of their lost vision and distortion usually is reduced significantly.