Distance doesn't matter for a fatigue perspective. Light intensity and time are big factors, though. Focusing on a short distance for a long period of time has

Distance doesn't matter for a fatigue perspective. Light intensity and time are big factors, though. Focusing on a short distance for a long period of time has been associated with myopia (though I'm not sure if they've established a causal link). I didn't really answer your question. Sorry. No I'm not aware.