Abstract: when a person is born, the eye axis is relatively short and the cornea is relatively curved. This physiological structure makes the child’s eyes hyperopia before the age of six or seven, so the ciliary muscle is in a state of contraction of different amplitudes for a long time., Children are more likely to be short-sighted: stay away from “small glasses” and don’t play mobile phones for children. Nowadays, more and more children around them wear thick short-sighted glasses early. It’s really distressing to watch them squint and look at people and read books. The reason for many children’s myopia is not because they study too hard, nor because they read and write incorrectly, but because they are infatuated with modern electronic products. The emergence and endless emergence of game consoles, computer games and mobile games make many children indulge in them. Myopia is caused by lack of control and excessive use of eyes. A survey shows that the myopia rate of primary and middle school students in China is about 60%, and that in some areas is as high as 80%., Children are more likely to be short-sighted. When a person is just born, the eye axis is relatively short and the cornea is relatively curved. This physiological structure makes the children’s eyes hyperopia before the age of six or seven, so the ciliary muscle is in a state of contraction of different amplitudes for a long time. During this period, if children’s eyes are often overloaded, especially long-time close eye use, it will lead to eye fatigue. The end time of hyperopia may be advanced, and the accumulation of this fatigue is very easy to make children myopia., According to the pathogenesis, myopia can be divided into pseudomyopia, true myopia and mixed myopia between the two. Pseudomyopia is a functional abnormality caused by ciliary muscle spasm of the eye. If it is not prevented and treated in time, it will form true myopia., IPads and mobile phones have become the “culprits” of eye injury. What has led more and more children to become “small glasses”? Electronic reading products such as computers, iPads and mobile phones are the main “culprits”. Their damage to children’s eyes is reflected in the following aspects: small screen and small font: when children look at the screen, their eyes will be close to the screen, which requires high contraction of ciliary muscle to increase the adjustment range. Children are in the period of growth and development. The eyes are responsible for regulating the muscles that look far and near – the ciliary muscle has strong strength. When you look too close, especially when you use computers and related products for a long time, you will have visual fatigue, which will affect the eye focusing function and induce myopia. In the long run, it will also cause amblyopia or strabismus.,
children are more likely to be myopic: stay away from “small glasses” and don’t play mobile phone
and
. Nowadays, more and more children around them wear thick myopic glasses early and watch them squint and read hard. It’s really distressing. The reason for many children’s myopia is not because they study too hard, nor because they read and write incorrectly, but because they are infatuated with modern electronic products. The emergence and endless emergence of game consoles, computer games and mobile games make many children indulge in them. Myopia is caused by lack of control and excessive use of eyes. A survey shows that the myopia rate of primary and middle school students in China is about 60%, and it is as high as 80% in some areas. Children with
and
are more likely to be short-sighted. When people with
and
were born, the ocular axis of the eye was relatively short and the cornea was relatively curved. This physiological structure made the children’s eyes hyperopia before the age of six or seven, so the ciliary muscle was in a state of contraction of different amplitudes for a long time. During this period, if children’s eyes are often overloaded, especially long-time close eye use, it will lead to eye fatigue. The end time of hyperopia may be advanced, and the accumulation of this fatigue is very easy to make children myopia.
myopia can be divided into pseudomyopia, true myopia and mixed myopia between the two according to the pathogenesis. Pseudomyopia is a functional abnormality caused by ciliary muscle spasm of the eye. If it is not prevented and treated in time, it will form true myopia.
,
iPads and mobile phones are the “culprits” of eye injury. What exactly causes more and more children to become “small glasses”? Electronic reading products such as computers, iPads and mobile phones are the main “culprits”. Their damage to children’s eyes is reflected in the following aspects:
small screen and small font: when children look at the screen, their eyes will be close to the screen, which requires high contraction of ciliary muscle and increase the adjustment range. Children are in the period of growth and development. The eyes are responsible for regulating the muscles that look far and near – the ciliary muscle has strong strength. When you look too close, especially when you use computers and related products for a long time, you will have visual fatigue, which will affect the eye focusing function and induce myopia. In the long run, it will also cause amblyopia or strabismus.
and
play screen Jumping Games: watching while sitting in a bumpy car or walking is particularly harmful to the eyes. Because of the changing picture and the flashing electronic screen, the ciliary muscles of the eyes must move frequently. Ciliary muscle can not be relaxed for a long time, which can lead to spasm and myopia. The colors of
and
screens are too bright and dazzling, which will lead to eye fatigue: This is also a very strong stimulus to the retina, which is easy to cause damage and lesions in the retina and macula, resulting in decreased vision and color sensitivity, and in serious cases, irreversible damage to the child’s optic nerve that has not been fully developed.
and
focus too much on the screen, which significantly reduces the blinking frequency: under normal circumstances, the blinking frequency of eyelids is 15-20 times per minute, but when looking at computers and mobile phones, the blinking frequency can be reduced to 2-3 times, resulting in excessive evaporation of tears, rapid rupture of tear film, lack of moisture and protection on the surface of eyes, dry eyes and astringent eyes over time, leading to dry eyes.
and
although electronic reading products are so harmful, they can’t be avoided in life and study. How to use them safely?
use electronic products scientifically and control the use time
the technical specification for children’s eye and vision care issued by the national health and Family Planning Commission points out that the time for preschool children to watch electronic video products should not exceed 20 minutes each time, and the cumulative time per day should not exceed 1 hour. The distance between the eyes and various electronic screens is generally 5 to 7 times the diagonal of the screen, and the screen is slightly lower than the eye height. Keep correct reading and writing posture, and keep close watch for no time each timeIt is also important to wait for more than 30 minutes.
and
adjust the brightness of electronic products to a more comfortable level. The distance of using electronic products should also be controlled. When using electronic products such as computers and mobile phones, it is more appropriate to keep a reading distance of about 40 to 60 cm. When watching TV, the best distance is more than 3 meters.
and
have questions and answers: “can students use tablet computers” prevent eye fatigue?
Q: at present, some students use tablet computers in the market, and some publicize that they can prevent visual fatigue and myopia. Many parents wonder if this is the case?
A: in fact, these computers mainly adjust the screen size, length width ratio, contrast, brightness, DPI and light source type. To a certain extent, they can reduce the user’s eye intensity and eye fatigue. However, it does not eliminate the fundamental factors causing visual fatigue, so it is not safe and harmless. If we believe in its publicity, ignore its harmfulness, and do not pay attention to controlling the use frequency and time of electronic reading products, it will accelerate the occurrence of myopia.