Most epiretinal membranes are clinically insignificant and produce no symptoms or very mild visual disturbances. These membranes are often discovered on routine eye examination and present with a glistening or subtle sheen on the retinal surface. No treatment other than periodic monitoring is required, as approximately 70% of these will remain stable without intervention. When macular pucker starts to cause symptoms, the membrane is more clearly visualized on the surface of the retina. Definite wrinkling or striate of the retina are observed; the retinal blood vessels appear tortuous where the membrane is contracting and straightened or stretched in the surrounding areas. This produces symptoms of varying degrees of distortion depending upon the degree and location of traction induced by the epiretinal membrane. Careful examination will often reveal retinal swelling, or macular edema, which is responsible for blurred vision. Patients often describe their condition as ‘looking through a fish tank.’