[rjewell]

Just to echo, I experienced the same symptoms and it was largely relieved by getting mild prescription "computer glasses".

Over the next two years, I was able to better correlate these symptoms with sleep deprivation, as well. Lack of glasses exaggerates fatigue, but fatigue onset is much more aggressive when I don't sleep enough.

[dbcurtis]

Another vote for cumputer-distance prescription.

Also, I have two monitors so naturally switch my gaze between the two through the day as I work, which helps.

One monitor is very large, and I set the resolution low so fonts and such are uncommonly large. Why strain?

Remember to look up and into the distance every few minutes.