As far as Eyesight goes, if you want to use this medium as a way to engage in reality-testing and social support, let me tell you (as someone who has never worn eyeglasses), over the past couple of years, I can say, without qualification, that it's starting to go. Highways signs are the worst. A checkup confirmed that driving glasses might be in order (but not required). I blame it on the computer, but it could be (gasp!) merely age.