How is myopia formed? A lot of genetics?

summary

Myopia in China, peace often, as if it is a normal imagination, because there are too many people with myopia. Myopia is due to the long anterior posterior diameter of the eyeball, or the increase of corneal curvature, the distance between the retina and lens is lengthened, the light is focused in front of the retina, but when it reaches the retina, it disperses, resulting in blurred image. Wearing a concave lens (myopic lens) can be corrected. The causes of myopia are as follows

How is myopia formed? A lot of genetics?

The first is congenital genetic factors: the families with high myopia are considered to be the parents of the parents. The incidence rate of myopia in the next generation is higher. Myopia has a certain genetic tendency. It has been recognized as a high myopia. But for general myopia, the genetic tendency is not very obvious.

Second: the improper diet of pregnant women in the fetal period is easy to lead to shortsightedness: if pregnant women take too much sugar, it may cause accumulation of sugar in the body. When sugar is metabolized in the body, they need a lot of vitamins, so vitamins will be insufficient due to excessive consumption. As a result of vitamin deficiency in infants, the development of ocular optic cells also needs a lot of vitamins. Therefore, the development of visual cells is abnormal.

Third: improper diet: the eye lacks some or some important nutrients during its growth and development, which makes the eyeball tissue more fragile. Under the action of environmental factors, the sclera of the eyeball wall is easy to expand, which makes the anterior and posterior axis of the eye elongate and cause myopia. Eat less sugar, eat more milk, eggs, milk, fish, meat, chicken and other high-quality protein food and coarse grain food to help prevent myopia.

matters needing attention

Long time use of electronic products, easy to cause eye fatigue, see things not clear, eyes habitually close to the video; electronic products have certain radiation damage to the eyes. Nowadays, the proportion of myopia caused by long-term watching electronic screen is higher and higher.