I was already a prescription glasses wearer when I started suffering from cataract. The new lenses have the same prescription as whatever my eyesight was that required me to wear glasses. But the lenses are so good, I can get away with wearing standard off the shelf non-prescription sunglasses. I can basically spot stars in the sky without needing to wear glasses. I can also work on my laptop or a PC without reading glasses as long as my eyes are at least 40cm away. I can manage reading my 5" phone screen from about 20cm without reading glasses.
After the operation I stuck to staying indoors, mostly in bed, for two solid weeks. When I did eventually go out, I wore dark sunglasses for more than a month, before switching to transition lenses. I had a six months break between operations. The pain in the eyeballs lasted for more than a year.
I developed some fogging in my eyes, which meant another visit to the specialist to get those cleared out with a laser. That left me with a couple of black spots, called floaters, inside my eyeballs. They can be distracting at times, especially since they move about over time.