I'm at the other end of the age spectrum, but I wrote a lot about my problems coming to terms with an eye defect after 60 years of near perfect eyesight.
Following surgery for PVD, I made a full recovery only to find that a nuclear cataract kicked in. Statistically this was likely to happen, but I had hoped that I was one of the lucky ones.
If you can search for this you will understand just how much the brain has to work to adjust to totally new datums. Some people just seem to adapt, others have a really bad time.
You would be described as an astute observer, and folk like you are often the ones that have the worst time. Having said this, I'm not totally convinced that the effects you describe should all be there. You have the right to question the prescription. My pal did, and his was wildly in error.
Let us know the results.