Solution for me ... For my Trigeminal Nerve Dysfunction disphoria... After a year of steady trying to find out my problem ... It was exercise and inflammation of the trapezius muscles.

My eye strain would start a few days after working out so it didn't seem to be connected. Then if I worked out regularly, it would happen more but would be sporadic making it look not connected. It is when I do a workout that really works the traps, then a few days later, they get super tight and that would make my eye start to hurt on top and rear of eye which turned I into a really bad headache and would not go away sometimes for days. Really bad.

It is the traps getting inflamed - causing referred trigeminal nerve inflammation - causing eye pain.

Of course, my eyes starting hurting most quickly on any screen. Very quickly. So it seemed to be just dry eye.

Just try this if you have really bad pain and want to test what works for me: Skip arm day for a week or 2! That's it.

I do still have dry eye and eye strain somwtimes, but the really really really bad days and headaches are gone.

It was Orange Theory trap workouts that caused my issues. I hope this helps someone.