I took that recommendation and the result was instantaneous. I never thought to adjust my monitor settings, as silly as it sounds. But it is nice that this utility is free and adjusts automatically. It's taken the edge off. I was getting terribly bloodshot/tired eyes.
Info for linux users:
f.lux exists also for Ubuntu, but it was forked and improved into Redshift for linux distros in general, which is merged in X11-utils, so chances are it might be on your system already, but if not, it's also available separately at https://github.com/jonls/redshift/releases in the format (binary or source) required. It is also in the SuSE repos, and thus available with the SuSE build service in any package format known to mankind, and it is also in the AUR (search for redshift-gtk for the GUI version).
f.lux and redshift GUI versions are gtk only, the CLI backends are universal, although I think that they require at least xrandr.
Contrary to f.lux, redshift works everywhere on earth and is not US-focused. There is an experimental windows version available, but I wouldn't know what that's worth.
Besides reducing eye strain, it's also a very useful tool for photo editing.
http://www.superfocus.com/
I bought the glasses when I was at "The Gathering" after beeing there for a day.
I had been gaming for 3-4 hours before I put them on, used them for 6+ hours and then took them off.
Didn't really notice any difference so I delivered them and got my money back.
Downloaded f.lux a couple a weeks later and tried that. worked a lot better
Thank you so much for that f.lux recommendation! Very useful. 10/10 would recommend to someone else.
If you suffer from eye strain from staring at screens gunnars can help.
Not every suffers from eye strain or gets relief from the gunnars. If they work that's great if not they aren't for you.
If I noticed eye strain I'd easily spend $100 to eliminate it. Plus I don't mind how they look.