The way my bedroom is set up, I have my imac on the wall, and the desk beneath it. I sit about two feet from it, if that. Im wondering if that is too close. I have vision problems (Im going to go to the doctors next month to get glasses), and I tend to sit about 3 feet from my 42" LED tv when I play my PS3. I cannot play a game any further than that because I just cant see well, and Ive always been like that, even when my eyesight was better. Do you think that maybe sitting so close to the machine has made my eyesight worse? Thoughts? Opinions? Advice?