I had cataract surgery in both eyes. Nothing to it really.
I could not believe how bright and clear everything was afterward. Mine went from whatever to 20-15 in both eyes. The girl said I might even be better than that as that was as low as the machine would go and I read that row easily.
Had cataract surgery in my left (non-shooting) eye and they screwed it up with a smudge on the replacement lens, so I have permanent blur in upper left periphery.
I used to hit silhouettes often at 300 meters on Army ranges—better than most. Not now, though. Too blurry. :-)