[imporesweemo]

When watching TV normally I dont need my glasses. However when watching a movie or playing WoW for 12 hours straight I better use them or I get radging headaches that only go away after a shower, 4 advil, a beer, and about a 2 hour nap...

I would suggest getting your eyes checked out. I never had that problem until I got into a bar fight and got punched in the face so hard my left eye is now ovalish in shape. So...I require glasses to see clearly. In your case since you mention nothing about drunken stupidity it might just be normal age/wear and tear.

I was told by a doctor a while back as well that playing games and all that can make your eyes try to focus very quickly which can add strain to your eyes. Also he mentioned proper lighting in the room. He stated "I know its fun to turn the lights off and play doom 3 in the dark but it can cause more strain on your eyes."