Increasing screen refresh rate

[mikethebook]

I run Sierra on a late 2009 Mac Mini with two Acer 17" V173 screens running at what I think is a native 60 Hz refresh rate. I'm having problems with dry eyes and read a suggestion to increase screen refresh rates to between 70 and 80 Hz. I can push the displays to 75 Hz and that might help my eyes but will that cause any damage to video cards or the screen itself? Your advice please.

 

[sublunar]

The Acer 17" V173 is capable of 75Hz refresh from what I have seen and I wouldn't have any qualms about letting a 2009 model drive the screens to that rate. That's some pretty old hardware there - I wouldn't be overly surprised if you had (unrelated problems).

I would suggest less screen time to help with the dry eyes thing - don't work long hours on screens.