My husband had surgery on both eyes..a few years apart.
the actual surgery of thecond one took about 5-10 min.
it was done with a robot with the doc in control, of course,
it was amazing! my husband saw and heard everything.
he was able to resume normal daily activity right away including go to work. He had to go in the next day to have checked.
They give you those large dark sunglasses so really no need to purchase, its probably preferable not to cuz the glasses they give you are closed up on all sides.
I would suggest do asap, why not be able to see and then there is the Hagada on Pesach..