Direct Light (Score 1)

Well, I'm no optometrist, but my simple view on it all has to do with the type of light we're looking at. Our eyes, as far as I can recall from anatomy and the bit of research I've done into it (my friend's got albinism and major problem with his sight, but not directly related to his eyes more so his connections on the brain, but took a while to find that out), eyes are generally meant to absorb reflective light from whatever source it is. We're told not to look straight into lights directly from young for a good reason. (i.e sun, headlamps, flashlights, etc.) our eyes get irritated and we have to squint and with due reason. under normal conditions we see only the light that is reflected off of objects, the light source is usually behind us. with modern displays (asside from projectors), all light is direct light being bounced straight into your eye. graned at considerably lower light dosages than a sun or flashlight would be, but still the same concept, and will degrade your vision slowly over time the same way looking at a strong light like that will burn out your eye (not literally of course), especially if you happen to be genetically prone to degrading vision. whenever i get the money I'd love to buy a projector use that for 5 years or so to see if my theory is correct (dunno if others have suggested the same thing, never bothred looking). meh.. until then.. where are my glasses....