I've worn glasses (nearsighted) since I was in 5th grade - diagnosed because I was having constant headaches at school. Mom always made me have plenty of light to read or watch TV, didn't want to "ruin my eyes". Genetic did more of that, as both my parents are/were near sighted. Then the age thing set in - at 41 I needed readers. BUT if I don't have my contacts in, I don't need reading glasses. So there. I've always had a problem with light sensitivity. I remember having a heated discussion with my Mom after moving to sunny Arizona, and wanting/needing prescription sunglasses. My eye Doc backed me up. Mom didn't want to spend the money. The solution was contacts (which I wanted even more) and over-the-counter sunglasses.