surrounded by 6 22" LEDs IPS daily and no problems at all, unlike the LCDs i had before which I got headaches from
Almost all the screens that you have mentioned emit lots of blue light. It is blue light only that causes eye related long term problems. It is very difficult to rule-out such issues. Although there are many International eye wear brands that claim that they can reduce the eyestrain Like Gunnar or Zebriana.