How is myopia to return a responsibility?

summary

It is understood that the incidence rate of myopia in China is becoming younger and younger. Now more and more children are suffering from myopia. So we must do a good job of the disease related work, so how is myopia?.

How is myopia to return a responsibility?

First: genetic factors myopia has a certain genetic tendency, for high myopia is easy to genetic. But for the general 200 degree myopia, this tendency is not very obvious. The patients with genetic factors were older and more than 600 degrees.

Second: development factors: with the growth of age, the axial length of the eye is gradually lengthened, and the development is normal until puberty. If overgrowth, the formation of myopia, such myopia is called simple myopia. When they are about 20 years old, they stop developing. For example, it develops rapidly in childhood, more rapidly in 15-20 years old, and then slows down.

Third: external factors: that is, environmental factors: (1) eye distance is too close. Teenagers' eyes have strong regulating power. When the distance between the book and the eyes is 7-10 cm, they can still see objects clearly. However, if they often read books at this distance, writing will make the adjustment of the eyes extremely tense, making the ciliary muscles unable to flex flexibly. Due to excessive regulation, the astigmatism will be strengthened, which will make the extraocular muscles exert pressure on the eyeball, increase the intraocular pressure, and congest the intraocular tissue, In addition, the young people's eyeball tissue is delicate, the eyeball wall is compressed and gradually extended, and the anterior and posterior axis of the eyeball becomes longer, which exceeds the normal value to form axial myopia, so-called true myopia. The normal reading distance should be 30-35 cm and the eye time is too long. Some teenagers read, write, do homework and watch TV for 3-4 hours without rest. Over time, when they look at the distance, the muscles of their eyes can't relax and become spasmodic. In this way, they feel blurred and form myopia.

matters needing attention

Eyes are the window of a child's soul. Without a pair of eyes with good eyesight, it will have a variety of effects on the child's future life. I hope that parents will make the child's eyesight health a top priority and check their eyesight regularly every year.