If it's really the blue diode that's bothering him...don't you usually cover it with your hands when you play?
I'm not making fun of it, if it's a medical condition then I'm sorry for that. It's just the way he describes his sensitivity for light and that it cause him headaches. Yet it's not the games on screen that bother him but the blue light on the Wiimote that's barely seen when playing and if you do see it then from the corner of your eye???
Again, mariocaseman, I'm not trying to make fun of you or belittle that condition. It just sounds so odd the way you describe your predicament.