Say someone has to be on screened devices all the time for important things such as work but it messes up their eyes, maybe even

They do make lenses that protect from the blue light given off by screens. They are supposed to help prevent damage to your eyes and keep you from hurting, but I haven't tried them myself, so I can't attest to how effective they are. Ask your eye doctor next time you pay a visit.

Small breaks every couple of hours or so will help alot. I work on a computer all the time and small breaks help my eyes from straining alot.

Anti glare glasses just Google it and that blue light filter thing

anti glare glasses can b of help..n take breaks..

download f.lux

Yeah, i just got some reading glasses a week ago for the same reason. They've made life easier, plus people think you're more reliable/intelligent..lol, the fools.