Never. The guy who gave me drivers lessons when I was 24 noticed I needed glasses cause I didnt see where I had to go right. I have had some new pairs through the years but almost never wore them. My kids liked to ruin them and since then I've never had a test or new ones. There was once a guy at the office and I said hi cause I thought it was a black guy that I knew but it was a white guy standing in the shadow.
One manager was offended because I never greeted him. I didn't see him. You have to wave. Lol my sister never wears glasses either and we'd meet at a hospital. Both staring with pinched eyes. Hey!!!