1. It is possible but you need to do more testing, including with CRT tubes and other technologies such as an OLED iPad.AllisterCreed wrote: ↑17 Oct 2022, 07:311 Is it possible that I am also colour sensitive?
2. question if my problem has reduced from previous monitors such that I can sit all day and only my eyes pinch, will they eventually stop because I get used to it?
3 I am looking for a 4k/120 hz HDMI cable. If I set the refresh rate higher, won't it suddenly feel more uncomfortable to use?
...Did you ever have problems with CRT or plasmas for the same vision field of view in the past?
...Did you ever have problems with a wide-gamut mobile such as an OLED iPad?
2. I can't answer that. It can be either. Things can get better but things can get worse. And sometimes much worse to serious health problems. Don't gamble!
3. Usually, higher refresh rates reduced eyestrain, regardless of old CRT or new LCD display. However, there are some people who had worse experience (motion nausea). Static images on LCDs looks the same at low and high refresh rates because the refresh rate isn't affecting anything, as refreshing a new image on an old image is essentially visually no-operation (nonwithstanding FRC artifacts and inversion artifacts). If you are getting issues even staring at static images, it's not the refresh rate as there's no flicker in sample-and-hold LCDs. Some people got the least eyestrain when using motion blur reduction or ultra-high refresh rates, while others needed to side-grade to a different panel technology to solve their ergonomic problem instead.
I'm sorry if I created more questions, than answers for you. You have to test dramatically different displays, including older displays and newer displays.
Don't forget the environment. The screen should not be the brightest object in the room. Put a LED lightbulb behind your screen, as another test. Other than blue light and flicker, there are over one hundred ergonomic issues with screens, that are sometimes not caused by the screen itself -- and often you have multiple concurrent ergonomic issues that is hard to diagnose. Ouch.
So a you may need an environment change AND dramatic side-grade (dramatically different panel, like LCD -> OLED switch) often hits a dozen birds simultaneously with one stone, while also considering your eyes (e.g. prescription glasses), and so on.
You have to spray many troubleshoot bullets at all the over 100 ergonomic issues concurrently, in a "niche mysterious ergonomic issue" situation. Binary-Search / Shot Gun approach is sometimes needed when it's too expensive or time consuming to try troubleshooting 1 ergonomic issue at a time.