Macular thickening Epiretinal membrane 2010-05-14T09:53:27Z HP:0100014 SNOMEDCT_US:133853005 Macular pucker SNOMEDCT_US:367649002 Premacular fibrosis Cellophane maculopathy Surface wrinkling retinopathy An epiretinal membrane is a thin sheet of fibrous tissue on the surface of the retina along the inner limiting membrane. It appears as a greyish semi-translucent avascular membrane over the internal limiting membrane (ILM) on the surface of the retina. If the epiretinal membrane is localized in the macula, it can cause disturbances of vision. Epiretinal membranes UMLS:C0339543