Shooting glasses are essential for practicing competitive shooting with a pistol or rifle for several reasons, but the main one is that if we do not see correctly, it will be difficult for us to aim.
From a certain age, human beings gradually lose the ability to focus on two different points located on the same line of sight but distant from each other (sights of the weapon and target). Although we do not have a visual defect, that is, although we do not need corrective lenses to see the gun's sights well, our eye, with age, loses the ability to focus on the target and the gun's sights at the same time. . To solve this, we use a diaphragm (iris) mounted on the lens holder of the shooting glasses, by closing it we gain target definition without losing the definition of the gun's sight.
Yes, to what has been said above, we add some visual defect that makes it impossible for us to see the weapon's sights correctly and forces us to mount corrective lenses, the need for shooting glasses to support the corrective lens and the diaphragm (iris) is clear. the same set