As the name implies, this delicate surgery takes place where the gel-like vitreous and light-sensitive membrane (retina) are found. Various vitreoretinal surgical and laser approaches can restore, preserve and enhance vision for many eye conditions such as certain types of age-related macular degeneration, diabetic retinopathy, diabetic vitreous hemorrhage, macular hole, a detached retina, epiretinal membrane and CMV retinitis.