Epiretinal membrane is the build-up of scar tissue on the surface of the macula. As the membrane thickens, the macula becomes swollen and wrinkled, leading to blurring of vision and distortion of images.
Blurring and distortion of images
Cross section view of normal macula
Cross section showing thickened and distorted macula
White scar tissue
Epiretinal membrane is treated by vitrectomy surgery. The surgery is performed under local anaesthesia with minimal discomfort. With modern techniques, sutures are usually not required.
Epiretinal membrane is stained with a dye and peeled off from the macula using fine forceps.
Vitreous is removed through tiny cuts on the sclera (white of eye) using an automatic cutter.