I'm trying to figure out how to modify my working conditions so that I can program longer without harming my eyes. Because doing so experimentally hasn't given conclusive results so far, I decided to ask for studies in this area.
Does looking at a bright screen in a well lit room strain eyes more than looking at dark screen in a dark room for prolonged periods of time? Or is there a middle ground somewhere in-between that is most harmless? Or is it a combination of contrasting screen/background?
I'm not asking for medical advice here. I already went to several doctors and they gave me different, sometimes contradicting answers, so I'm just looking for research.