To state the obvious, just in case, the old “if it hurts you to do X, do it less” applies to eye strain as well. If sitting 8h in front of a computer hurts yo

To state the obvious, just in case, the old “if it hurts you to do X, do it less” applies to eye strain as well. If sitting 8h in front of a computer hurts your eyes, taking regular and irregular pauses, changing focus, printing long documents etc. will of course dramatically help and probably be the best effective way to reduce it.