With the development of science and technology, the application of electronic products in people's lives more and more, whether it is cell phones, or computers and other electronic products, have given people more help and support in life.

And teenagers are also living and learning in the process of exposure to more and more electronic products, they are in the school period, they may come into contact with the projector and other imaging equipment to assist learning, in the after-school hours, may also be utilized tablet PCs and other equipment to class or study.

These electronic devices do make learning more intuitive and efficient for students, but the overuse of electronic devices can lead to many other problems.

Many teens have become very dependent on electronic devices. They may spend a lot of time using electronic devices both in class, and out of class. And this situation has caused many teenagers' eyesight to be seriously affected, with more and more cases of nearsightedness due to overuse of electronic devices. Many students have to wear glasses in middle school or even elementary school.

And during the epidemic, in order to prevent and control the epidemic, it made it necessary for students in many areas to use online classes to study at home, which also aggravated the degree of myopia among young people.

National Committee of the Chinese People's Political Consultative Conference (CPPCC) member He Wei, chairman of He's Ophthalmology Group, said in an interview with reporters. The Ministry of Education's big data monitoring shows that in the first half of 2020, the country's about 200 million children and teenagers at home on ? online classes? , the myopia rate of students in the first half of 2020 increased by 11.7 percent compared with the end of 2019. Among them, the myopia rate of primary school students increased by 15.2 percent, middle school students increased by 8.2 percent, and high school students increased by 3.8 percent.

He claimed that controlling the time of online classes, reducing the time of games as well as light and outdoor exercise should not be less than 2 hours, these approaches must be done to be effective.

It can be seen that due to the frequent use of electronic devices, as well as the reduction of outdoor exercise time, are aggravated by the youth group vision loss. And if you want to change the status quo and reduce the rate of myopia among teenagers, you have to work through many aspects. First of all, the reasonable arrangement of after-school homework for teenagers, not let them spend too much time on homework; secondly, reduce the utilization rate of online classes; finally, give teenagers as much as possible outdoor time, so that they can exercise the body at the same time, but also to a certain extent to alleviate the fatigue of the eyesight, so as to reduce the incidence of myopia.

This is not only to improve the youth's awareness of vision protection, but also through the strong guidance and help of parents and teachers, before the status quo may be improved.