My STRONG suspicion is that this is a muscular condition. The fact that my eyes feel "tight" or "tense" when I'm having issues leads me to believe that something (LED, flicker, spectrum, intensity, etc.) is "triggering" my brain to tense the muscles around my eyes leading to a rapid onset of symptomology. Lately, between the new car and remodeling the basement I've spent a lot of time under questionable lighting - perusing the lighting aisle in Lowe's, installing new fixtures (and the flicker associated with them) in my basement, in and out of work, etc. and my eyes are just TIRED all the time. this leads to more rubbing, more straining, less blinking, etc.
If it's possible to simply force the eyes and muscles to relax through judicious use of ANY relaxant (whether it's THC, alcohol, or really anything), I'll take that option. I honestly don't think that there are EVIL DAMAGING RAYS (although the effect of blue light on the retina is definitely not positive) that are hurting us. This is a brain/eye/muscle/focus problem. There IS a solution out there, we just have to find it.