I think I had my last professional eye test 15 years ago. At that point my vision was more or less the same as it had been seven years previously.
Rough-and-ready eye tests suggest my vision is somewhere around 20/20 and maybe slightly better. Curiously I can also read small print - apparently it's unusual for people my age to not have lost some near and/or distance vision. Maybe it's the amount of time I spend outside, but I won't complain too loudly about it.