What does myopia mean in psychology?

Probably that it means that the vision is very close, and the eyesight is good, and you should see clearly. However, in practice, I don't know much about this in my mind.

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Myopia refers to the state of adjustment of rest, parallel rays enter the eye, focus in front of the retina, fall on the retina is not clear image, this refractive is called myopia, myopic eyes want to see the object in front of the object clearly, need to move the object closer or wear myopia, myopia and myopia, these are two different concepts, myopia is a concept, refers to the phenomenon of low distance vision, and normal near vision, myopia is a refractive concept, refers to parallel rays, focused on the retina before the refractive state.

Myopia must be myopia, but myopia is not necessarily myopia, accommodative myopia caused by nodal muscle spasm is a kind of distance vision low length, and the myopia phenomenon of normal near vision is essentially emmetropia or mild hyperopia, according to the degree of myopia, it can be divided into mild myopia, moderate myopia is very high myopia, mild myopia refers to myopia below 300 degrees, moderate myopia 300 degrees to 600 degrees of myopia, high myopia refers to myopia above 600 degrees, according to the refractive factor, Myopia can be divided into axial myopia, curvature myopia, exponential myopia, etc., according to the nature of the lesion, it can be divided into simple myopia, pathological myopia and secondary myopia.

The other is congenital myopia, which is more than 1,000 degrees in the infancy area, which is called congenital myopia, and this myopia usually does not develop a difference from pathological myopia.

After detection, it should be corrected in time to avoid the occurrence of amblyopia.

The essence of myopia is that the eye axis of the eye is too long due to congenital factors or acquired factors, so that the light passes through the refractive system of the eye and is imaged in front of the retina. The acquired factor is generally long-term overuse of the eye, and the eye muscle pulls the eyeball, resulting in the elongation of the eye axis and the formation of myopia. At present, the conservative** is mainly to wear a concave lens to improve the corrected vision, and the surgery** can thin the cornea to shorten the eye axis of the eye to achieve the state of eye empathy.

The essence of myopia is that the anterior-posterior axis of the eye is too long or the refractive index of the eye is too high, and the focus of imaging falls in front of the retina, and the vision of distant things is blurred.

Myopia is defined as the fact that parallel rays of light pass through the refractive system of the eye and focus in front of the retina while the body is relaxed. Recently, it is also known as short-sightedness, which can only see near objects, and is hungry for distant objects and cannot see clearly. Children's myopia has a lot to do with bad habits, and it is necessary to reduce the number of times you look at electronic products.

1. Myopia is a type of refractive error. When the eye is in a relaxed state, parallel light rays enter the stimulating eye and focus in front of the retina, which causes a clear image to not form on the retina, which is called myopia. At this time, the refraction examination will indicate the degree of myopia, such as 50 degrees of myopia, which is usually called 50 degrees of myopia, and is recorded as ".

Confessional Rock. 2. In the state of relaxed ocular accommodation, the parallel light from the outside of the preceding object enters the eye, and its focus falls on the retina, then a clear image is formed, which is called emmetropia; If the focus does not fall on the retina, it is called nonemmetropia, which is refractive error.