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Does cross dominance cause my double barrel vision?

Seeing two barrels, while the gun is mounted into the shoulder and both eyes are open, is not ocular cross dominance! It is called natural diplopia.The shooter sees two barrel imagines. One of the images represents the real barrel and the other one represents the ghost barrel. This phenomenon occurs because the object we're seeing (the gun) is too close to our eyes compared to the distance of our closest focal point. The closest focal point is where the two eye axises intersect at the closest point from our eyes. If the object is closer than this focal point then the shooter perceives both images from each eye.If you close one eye the ghost image disappears. 

1 Answer

Coach Bill
Answered over 1 year ago
Seeing two barrels, when the gun is mounted into the shoulder and both eyes are open, is not ocular cross dominance!  It is called natural diplopia.

The phenomenon occurs because the object (the gun) is too close to our eyes compared to
the distance from our closest focal point. The closest focal point is where the two eye axes intersect at the closest point, also called the first focal point. If the object is closer that this focal point, the shooter perceives both images from each eye.

The two images are formed independently. The image from the dominate eye is the real image, the image from the non dominate eye is the ghost image. When learning to shoot with both eyes open we try to ignore the ghost image.

Shooting with binocular vision(two eyed shooting) is the best for shotgun shooting. Considering that we shoot upon mobile targets, it is very important that the brain compiles the visual information from both eyes.

When we close one eye, the ghost image disappears but at same time we cut the binocular vision to monocular vision(one eyed shooting) eliminating the depth perception as well.