Eyeglasses. A simple thing. Yet millions do not have access to even basic eyecare. And let me add that in the U.S. many cannot afford glasses. Vision is one of those things, that like dental care, is inexplicably seen as an add-on by insurance companies. I pay for my eyewear out-of-pocket, for instance, and you don't EVEN want to know how much I spend! (But just so you know, there ARE programs in many communities and also through places such as Lenscrafters that will assist you in getting glasses, sometimes even at no cost, depending on your circumstances.)