I think the point of the surgery is just to remove the cataracs. Having better vision is a perk. Not everybody gets 20/20 though, there can be complications. And some people opt to not have the more expensive lenses, I have to pay out-of-pocket for those.
But you were asking why the vision doesn’t change after? I don’t know. Maybe because most people are older and their vision is stabilized? My vision was stable, such as it was, for the previous five years. Before that I need new glasses often for prism changes. Having the strabismus surgery was a miracle. Lots of Miracles with my vision these days. And we live in a great country, where it’s all available.
I guess I’ll find out when the time comes... there’s no telling what they’ll be able to do years from now. And it WILL be years from now because I’m going to put it off as long as possible! Hate people messing with my eyes. Getting the exam is bad enough, and they run extra tests on me because I’m a glaucoma suspect besides being diabetic.