“Peripheral vision is vision from the side of the eye. It is not as focused as a direct gaze - you can’t read with it and colors are less certain. It does, detect motion quicker and allow for faster response time then focused vision. A good fighter does not watch your hands, he put his gaze where any movement form you hands or feet will register in his peripheral vision. The ‘thousand yard stare’ puts almost everything in peripheral vision and is a critical skill in combat to detect ambushes.” - Rory Miller, Facing Violence
Comments: The true question is, “Do self-defense programs address this aspect of the various tools you need for defense?” What about the others?