Hi, I initially had a mac off detachment in right eye with hole at 1 o'clock. After 2nd vitrectomy for 6:30 o'clock hole and 2nd detachment (after failed gas), I had a silicon oil (denseron) tamponade put in. It was removed 2 months later, replaced with an air bubble. Ater a few days with air bubble, I suffered another macula off detachment as another hole had developed at 6 o'clock.. I was told the 2nd mac off was "shallow" with little fluid. My question is how much more damaging is this to the macula and fovea? And also, how much would this affect BCVA?