He reminded that after teenagers are nearsighted, the eyeballs will continue to lengthen with the increase of the degree, which may lead to thinning, atrophy, detachment and even blindness of the retina. In the interview, he also introduced the "20-20-20" vision protection rule: look at objects at least 20 feet (6 meters) away for more than 20 seconds every 20 minutes.
Extended data
Causes of myopia in adolescents
On the surface, parents want their children to succeed and cultivate excellent early education, and students have a heavy academic burden inside and outside class; The pressure of students' grades is great, and the use of "electronic video" is early and long, which leads to long cumulative close-up eye use time and insufficient exercise, especially in outdoor activities. Physiologically, the myopia of children and adolescents is mostly axial myopia at present. The main reasons are that during the child's refractive development period (before 12 years old), there is little close-range high-intensity exercise with eyes and outdoor sunshine, and Asians are weak in physical fitness and muscle energy, and their eye physiological function is not strong enough, and their anti-myopia ability is not good enough. The rapid development of eye refraction and the rapid growth of eye axis lead to myopia.
From a deeper perspective, the social environment "emphasizes governance over prevention" and public services are insufficient; The education evaluation system "emphasizes credits" and pays insufficient attention to children's health; All departments have not formed a joint force, and the focus of myopia prevention and treatment is "treatment" rather than "prevention"; Parents lack cognition and outdated ideas, hoping that "one device on each side" can "cure" myopia.