I have f.lux for my pc. I also am looking to get some amber tinted lens sunglasses to wear at night over my own glasses. I have seen orange, copper, amber, and yellow lenses. Is th …

My own experience is that one can sort of get addicted to wearing them. When I was younger, I would wear them all the time and I am sure my eyes were far more light sensitive. Th …

This may seem like a dumb question. Do sunglasses have an effect on vitamin d production? Does vitamin D production rely strictly on exposure to sun, or do you have to see the sunl …

What's the deal with UV light absorption through the eyes? I read a few years back that it is essential to let some sunlight into our eyes, especially during the winter months, yet …

I use a cpap at night to sleep and my husband has noticed that I am sleeping with fewer issues at night now that I am on this diet. Even with cpap and prescribed allergy nasal spra …

I hope this is not too trivial a question. I've never really liked them, and don't wear them. Except while driving the car in bad light conditions (driving into the sun, low sun i …