@Monica19815 mine took 9-10 months post vitrectomy/ERM peel in my LE to settle back to normalcy. Mine was done about four years ago and there has been no recurrence of symptoms. Be on the lookout for cataract development, unfortunately the procedure virtually guarantees that one will form or develop more rapidly if already present. I had to have cataract removal surgery 18 months post vitrectomy, when the best corrected vision I could get had deteriorated to 20/70. Today my corrected vision in that eye (I wear RGP contacts) is 20/20 to 20/15.
These surgeries are all unique and it is not possible to generalize. It can take 6-12 months. In many cases vision does not return to normal and reduced vision and distorted vision are permanent.