As I mentioned above, it's not so much about our eyes being side-by-side as it is about our world being horizontally organized. Our eye muscles are optimized fo

As I mentioned above, it's not so much about our eyes being side-by-side as it is about our world being horizontally organized. Our eye muscles are optimized for horizontal movement (two muscles involved for a horizontal scan, one contract and one relax, where four are involved for vertical movement). http://www.tedmontgomery.com/the_eye/eom.html http://www.tedmontgomery.com/the_eye/eom.html