The importance of Knowing which eye is your dominant eye cannot be overemphasized, ones dominant eye is as useful as knowing ones dominant foot but unlike the foot and hands, your dominant eye may be different and it can help to improve your performance in certain sports and activities, such as photography.
Sports
In some sports, being able to take full advantage of your dominant eye is crucial and requires positioning your head properly in order to do so. Golf and baseball are two examples of this.
In golf, turning your head to use your dominant eye is key in the proper alignment of every stroke, including putts, drives, and fairway shots. Its just like saying you know you can putt the ball better with your right hand and then you use your left hand because you dont know which of your hands will give a better result.
In baseball, you need to turn your head enough to allow your dominant eye to clearly see the approaching ball’s position, rotation, and speed when you’re batting if you want to be able to hit it else you will be making silly comments to your team mates about how you never saw the ball heading towards you.
Shooting
Your dominant eye plays an important role in shooting and hitting moving targets. If you find that you’re having trouble hitting moving targets, you can benefit from a test to find your dominant eye as this will help u to effectively aim properly.
Cross dominance, which is having a dominant eye on the opposite side of your dominant hand, can make shooting at a target difficult. Being aware of your cross dominance can help you adjust position and technique, and know which eye to fixate with to improve your accuracy perfectly
Photography
Knowing which of your eyes is the dominant eye can help you set up a shot when looking through the viewfinder of a camera. By using your dominant eye, you get a more accurate preview of the shot and better alignment, while using your non-dominant eye can cause some details to be displaced and terrible shots will be taken
Eye dominance in vision correction
Eye dominance plays a role in vision correction. It helps the doctor make clinical decisions when treating certain vision problems, such as amblyopia, which is known as lazy eye, and strabismus, or crossed eyes.
It’s also an important consideration when treating people who require different types of correction in each eye — for instance, glasses or contact lenses that correct distance vision in one eye and near vision in the other.
Eye dominance also plays an important role in planning cataract and other vision surgery. The dominant eye is often the preferred eye when setting distance during surgery. In some cases, eye dominance can change following surgery, according to a 2015 studyTrusted Source.