I have just came from a Nerou-Opthamoligt (she works for the John Moran eye center) this past week. The headaches that I’ve been struggling with turned out to be migraines. I was wearing sun glasses with a patch on the glass part of my left eye because any sunlight would tip me over the edge. She gave me a prescription for glass lenses called FL-41 it is a special tint made for people with migraines. She also has me use I drops (any of the counter ones without preservatives) any time my eyes burn even if it has only been 30 seconds form the last time I put them in. One of the best things is the refresh pm gel that you buy over the counter it is an ointment and stays on the eye longer and help sooth my eye. Good luck.