The operation you are having epiretinal membrane (ERM) peel is so unique and each case different that it is not possible to tell you anything useful about how much your vision will improve, if any. You would have to get this from the retina surgeon. The other thing you need to be aware that when a person has an RD in one eye the other eye is at high risk of RD. Report any sudden increase of floaters, flashes of light like lightening, or loss of peripheral vision to your retina surgeon immediately. Have your eyes checked yearly by a retina surgeon and a general eye exam by a comprehensive Eye MD ophthalmologist. Be careful to avoid injury to your eye, avoid contact sports and amusement type rides which whip the head about.