Everyone might perceive Tired Eyes or "Killed Eyes" differently. For some it might be a little scratching/dry eyes for others it might make them headaches und blurred vision up to not be able to use screens anymore for the day.
No matter what it is, in COVID times when everyone uses the screen 8h+ / day we should have some better screen tech, which is at least as good as a book. It can't be that this occupational hazard should be accpeted like it is right now.
Other professions like medical radiology imaging are more forward thinking in this: http://europepmc.org/article/PMC/5449879