Hello people, i wanted to update this post since i received email that you brought it back from death and i'm glad you did since i forgot about it. 😃
So for the past 2 years for my PC i am still using DELL E198wfp and my eyes didn't got worse from it at all it's been stable....but i still have BenQ GW2255 (my sister is using it) and she also had said to me that her eyes hurt from it and she is using it only for 2 months. There is definitely something wrong with that monitor because i have used it also when i was installing windows on my sisters computer and for those 30 minutes i had eye pain,eye dryness and headache which i don't have when i am using old DELL CCFL monitor. On my old Dell i can play games for hours and everything is ok.
BUT KNOW I HAVE SOMETHING REALLY INTERESTING!
2 Months ago i have bought 2 LED 55" Smart TV's,one for myself and one for my parents but they are not the same.
Mine is SAMSUNG with VA panel and PWM flickering and the other one is LG with IPS screen (don't know if LG use PWM)
And what i have noticed is that i can watch my Samsung normally like i can my Dell monitor but if i try to watch LG TV from my parents after only 20-30min my eyes get dry and start to hurt, I will continue to use my TV and try and see if it will hurt me later but for know it doesn't but i am using it only for 2 months and not very often so i can not guarantee that it is good. Also one interesting fact is that BenQ monitors are using LG panels and they hurt my eyes like LG TV does, no matter if it's VA or IPS, while Samsung does not, at least for know, even while it's VA panel and it even has PWM flickering and i am not using it at 100% brightness. My old Dell monitor also flicker but for me that doesn't present a problem,something else does and i still don't know what it is.