The concept of "left-handedness" is not new to our daily lives. In fact, it refers to those who, unlike most people, are Xi using their left hand for various activities. Left-handed writing, eating, playing ball, etc., seem to them to be a natural Xi. It is what we often call the "main hand". For most people, the main hand is right-handed. However, there are also some people who have their left hand. These people are what we call "left-handedness".
Yang Ming Vision tells you an interesting thing, "There are also "left-handed" and "right-handed" eyes. The "left-handed" and "right-handed" eyes do not refer to the shape or function of the eye, but to which eye people are Xi to use when observing and judging direction.
The eyes are one of the most important sensory organs in the human body, they not only help us see the world around us, but also allow us to perceive visual information such as light, color, distance, etc. However, you know what?Not both of our eyes work at the same time, they are divided into "primary eye" and "secondary eye". The "dominant eye" is the eye that is responsible for the main visual task, and it does most of the visual work, allowing us to clearly see distant objects and details. On the other hand, the "secondary eye" is the eye that assists the main eye to work, and it plays a role in observing the general shape and color of objects. While both of our eyes are constantly observing and perceiving our surroundings, only one eye has taken on the main visual task at one point. This division of labor is beneficial because it reduces the burden on the brain and allows us to process visual information more quickly. However, the "secondary eye" is not fishing, it is silently supporting our visual tasks. When we are looking at distant objects, the "secondary eye" helps us maintain balance and stability. At the same time, it is also able to perceive some small details and color changes, which helps us better understand and perceive the world around us. The phenomenon of the "dominant eye" is academically known as "ocular dominance," a concept that describes an individual's dominant eye in visual perception. From a human physiological point of view, everyone has a dominant eye, which may be the left eye or the right eye.
More often than not, the eye that people use to aim is their dominant eye. The dominant eye is the one that is relatively good at or is more often used for precise vision tasks.
What the main eye sees willPreferential acceptance by the brain。Human brain Xi inertia uses the imaging of the main eye to analyze and locate objects, and the main eye often develops better than the secondary eye due to more movement and more supplies.
In our daily lives, it is sometimes seen on the street or in public places that some children are wearing glasses, and one of the glasses is covered with a black cloth. This may arouse our curiosity, why would a child do this?There is actually a professional and complex reason behind this.
Actually, it's forCorrection of dysplasia of the accessory eye
It is the main eye that is obscuredIn this way, the secondary eye is forced to assume the responsibility of ownership, constantly observing and analyzing things, and the body's nutrients are constantly replenished, so that after the accumulation of time, the situation of poor development of the secondary eye is solved.
- So how do you distinguish the subjective eye? -
In addition to going to a professional ophthalmology institution for optometry, you can also try a simple initial identification.
1. Open your hands and move them closer together, using the tiger's mouth to form a triangular or circular gap.
2. Find the target object, which can be a pen or a cup;The body is facing the target, and both eyes are looking at the object.
3. Place the target object in the middle of the gap between the hands, and then close the left and right eyes alternately to observe the displacement of each eye on the target object.
4. If the displacement of the target object is small, the eye that is open at this time is the main eye;If the displacement is large, the open eye is a secondary eye.
- Why, then, do we need to be sure of the subjective eye? -
Some people may experience dizziness and eye pain after glasses, which may be caused by the dominant position of the secondary eye. When performing professional refraction and vision correction adjustments, it is important to ensure that the adjustment of the primary eye is accurate enough.