Birchwood Casey Off Eye Optical Lens Filter Kit

Rarely do advanced shooters shoot with one eye closed. The advantage of both eyes open is 3-D depth perception, field of view and peripheral vision. Binocular vision gives us the ability to pick up on a moving target quicker and react more accurately and efficiently. For shotgun, rifle, handgun and archery.
This patented product allows full-time use of a dominant aiming eye and allows the shooter to keep both eyes open. Off-Eye® filters are the first shooting aid designed to not block your vision but to hone the way your eyes perceive the target.