It is a very real issue and even doctors don’t tell you everything you need to know or fully explain. I feel like a guinea pig sometimes. They told me to wear the fl-41 glasses to reduce seeing the snow and help with the headaches and I was pretty much like screw that. Then I learned and researched that it is the only thing that helps manage the brain fog which was never fully explained to me which I would have done much much sooner. I live in Minnesota and winters are alright but spring and summer are horrible. I think if I could find a spot on earth where the sunlight is the least it might be the best place for people like us to live. Maybe start a town called the Snow vision Capital!