Do we have an obsessive eye?
There are left-handers and right-handers in humans, which is a classification of the dominant hand. Similarly, most people have a dominant eye. The so-called dominant eye refers to the one of the two eyes that is dominant in terms of vision, binocular competition, and aiming. The dominant eye has an important role for some people.
Our eyes normally transmit anything they see to an area of the brain called the visual cortex. The dominant eye has more connections to the nerves in that area than the non-dominant eye, so the neuronal bands preferentially respond to the information transmitted by the dominant eye. For those who use a single eye to complete tasks, it is possible to take advantage of the dominant eye, such as shooters, snipers, etc.
Most of the time, the dominant eye corresponds to the dominant hand. It's not a fixed rule, though, because sometimes, different eyes dominate in different tasks, giving the person a mixed visual advantage. This has to do with the brain's "task assignment": people's dominant hands are caused by the hemispheres of the brain, while in vision, both hemispheres control both eyes at the same time, and each hemisphere controls a portion of the visual field of both eyes.