Even though you don’t need to wear glasses when playing the Nintendo 3DS deals it still causes eye strain just as any 3D content does. This is because all 3D effects are achieved in the same way, by sending two different images to each of your eyes and therefore confusing your brain. This confusion causes the illusion of depth. Now, you could play the role of a crusader to stop the ever-increasing prices or I could just show you how you can buy a cheap Nintendo 3DS and then go on your merry way.