I've been using prescription Serengeti drivers since 1991. They are usually just right, enhancing contrast, and, something which surprised me, allowed me to see much better through fog! I can be whizzing along in the car wondering why everyone else is driving so slow, then I switch to my 'ordinary' glasses and find out why!
I think I was the first person in the UK to get these and they had to be ordered from the US. My optician was so impressed he then ordered a pair for himself.
Mind you, they can make a 'just before night' landing into a night landing...

Land, take sunglasses off, realise that there is actually some daylight left!
No, my prescription hasn't changed since 1991...