I have had cataract surgeries in both eyes, the surgery lasted about 6 minutes. I was in the hospital at 6:00am, waited about an hour when nothing was done, then they took me to a open ward, gave me a numbing shot in my eye (yes, that hurt for about 30 seconds), then a series of eye drops. I was home by 8:30, no restrictions, except scuba diving and horseback riding for 30 days.
I had worn glasses for over 50 years, and I don't need them anymore, my vision was 20/400 before the surgery, now it is 20/20 and I can drive without glasses. The downside is two fold, one between the weeks separating the surgery on each eye, you are out of balance and don't feel quite right, would encourage to get the second one done as quickly as possible. The other downside is that I cannot see anything close up and need to have "cheater glasses" for any type of close up work.
Over time, you can get scar tissue built up, but that is easy to remove.
Wish I had the surgery years earlier.