I've been nearsighted for years, and wore corrective lenses, especially for driving. 6 years ago, I went to renew my license, and they told me I didn't need glasses to drive. Ok, but I still wore them, but I tended to not wear my glasses for routine things, and took them off for reading and other close work.
Last year, I again have the restriction on my drivers license, it says I need glasses. I now have mild bifocals to read, but still don't wear my glasses for general use.
I'm 53, so about 48 is when the changes started