Back when I was in 4th or 5th grade I got a new pair of glasses that automatically darkened in the sun. I thought they were really cool and so did my classmates. I was the only kid that any of us knew that had them. A year or two later when I traded them in for a new prescription I decided to get normal lenses. It was soon after that I started suffering from reoccurring headaches. My mom took me to the doctor a few times to try and figure out what was wrong. I finally figured it out myself. I had gone about two years without seeing the sun at its full brightness and I was getting headaches from the glare. I started wearing a baseball cap and my headaches went away.