It takes about 3 weeks to recover from this surgery. The hardest part of the recovery is keeping the gas bubble in the right place.
You must keep your head in a certain position for most of the day and night for about 1 to 3 weeks after the surgery.
You cannot lie on your back. If you do, the bubble will move to the front of the eye and press against the lensinstead of the retina.
You must avoid air travel until your eye has healed. A change in altitude could cause the gas bubble to expand. This would increase the pressure inside the eye.