Just as you have a dominant hand, you also have a dominant eye. You need to aim with the dominant—or master—eye for the most accurate shooting. Usually your dominant eye is the same as your dominant hand, but not always.
To determine your dominant eye:
Form a triangular opening with your thumbs and forefingers.
Stretch your arms out in front of you.
Focus on a distant object while looking through the triangular opening and keeping both eyes open.
Bring your hands slowly to your face, keeping sight of the object through the opening; the opening will come to your dominant eye naturally.
If you’re not sure, close one eye at a time. The weak eye will see the back of your hand; the strong one will be focused on the object in the triangle.
Fixing Cross Dominance
There are various ways to address cross dominance (ie. you are right handed, but your left eye is dominant or vice versa).
Use a patch on your glasses - when applied to the lens of the shooting glasses over the offending eye, this subtly prevents the eye from focusing, while maintaining depth perception and peripheral vision. See magic eye dots.
1. Use red dot sights. This allows one eye t acquire the target and the other acquire the red dot. The shooter’s brain superimposes the two, enabling precise aim. With cross-eye dominant shooters, the stronger eye looks at the target and the weaker eye picks up the red dot, leading to a sight picture as good as or superior to that of regular shooters.
2. Learn to shoot with your non-dominant hand, mounting the firearm on the same shoulder as your dominanteye. This will take some time.
Education is an integral part of being a responsible gun owner and continuous learning will help you improve everything from your gun handling to your mindset. Start with these 5 things that every gun owner needs to know.