I had one eye done last November, so here’s my experience.
You do not have to wait for it to get bad. I don’t know who started that idea, but it’s false.
I don’t know how long the surgery took, because my sense of time was altered. I was semi-conscious during the procedure, so I could concentrate on keeping my eye still. A few times I started to go under, and the surgeon had to remind me to “focus.” And I remember beginning to snore a little at these times.
You are not allowed to drive there, or home afterward.
You’ll wear a transparent eye patch with holes in it, mainly to keep your hands away, especially when you sleep.
Follow your doctor’s instructions with the eye drops. This is very important.
There will be random after-effects of the surgery, sometimes permanent. I was seeing rays shooting out of everything bright, at certain angles. This is very gradually reduced over time, but still there. And in my right peripheral vision, I was seeing reflections of bright lights that were to the left of me. This was actually light reflecting off the incision itself, and went away as it healed.
(If you want to see these “special effects” enhanced, have your surgery in the xmas season, like I did. Xmas tree lights will be spectacular!)
THIS IS VERY IMPORTANT: Be sure that you and the surgeon are in agreement as to whether the lens will correct your vision, in addition to getting rid of the cataracts. I thought my doctor understood that I wanted a corrective lens, but she said I had not made a definite decision. Now, if I want my vision corrected, I’ll need it done at my expense.