How to design a UI to reduce eye fatigue?

I am an operator for a large piece of industrial equipment that has a new digital interface, but operating that equipment requires staring at a computer screen for several hours to ensure that everything is working properly. The UI has a beige/white color scheme with a very "Windows 95" feel to it and I find it difficult to stare at the screen for so long. After a while I need to look away from the screen for a bit or frequently blink to reduce my eye fatigue.

I'm just engineer and know very little about UI/UX design, but I'm wondering if there are some guidelines somewhere for designing interfaces to reduce eye strain. Any help here would be greatly appreciated.

Thanks