Why have cataract IOL replacement? To get "SuperSight" without any spectacles ever again, that's why and you can have the surgery from the age of 45 and never get cataracts. Most just won't pay to have it done properly and have fixed focus lenses. I had to have mine done in the middle of the pandemic and the results are fantastic and better than 20/20. I'm 74, can read the paper specs free, use the computer, drive cars, ride motorbikes and do what I want.
Don't believe the Opticians and spectacle shop workers when they advise you not to do it. Of course they don't want you to have the surgery because after you do, they know they'll never get another penny out of you! All things optical have advanced a long way in the last ten years. Yes, there's big money to be made from everything to do with the operation, that explains the advances. But you get the benefit of never having to pay an Optician ever again.