Hi BirdInFlight. My experiences with light are quite similar to yours, and, like you, I wear a hat, outdoors (indoors, as well). Not to get too off topic, but, last night, the last of several lights/fixtures were replaced with LED lights, at an office I work in. The effects on one's health that LED/blue light can cause, doesn't stop at those with light/photo-sensitivity. In doing some research last night, I found a few articles pertaining to Blue-light blocking glasses. I will be ordering a couple pair, today. I have been utilizing a blue-light blocking app, called f.lux, on my computer, for the past couple of years, recommended by the WP member, Noca in fact, and I cannot imagine life without it. I have an iPhone, which came equipped with a setting, appropriately named; Night Shift of which, blocks blue light. The glasses work the same way (thought I'd mention, in case it could be of benefit to others, as well).