Can   more than half of adolescents have myopia with laser surgery once and for all?

  As the country's primary and secondary schools return to school one after another, the problem of young people's myopia has once again attracted social attention. The National Health and Health Commission released the first "China Eye Health White Paper" on June 5. The white paper shows that the myopia rate of children and adolescents in my country is 53.6%, and the myopia rate of college students is more than 90%.

  What caused the surge in myopia in recent decades? The traditional view is that the reason for the increase in the number of myopia is that people read too long or stare at the computer screen for a long time. But in fact, some studies believe that the main cause of myopia may not be visual fatigue caused by long-term reading, but insufficient indoor light. Therefore, to prevent myopia is also very simple, take more children outdoors.

  At present, myopic fundus diseases have become the main blinding eye diseases in adults in East and Southeast Asia. With the development of myopia degree, the eye axis gradually becomes longer, just like a balloon blows bigger and bigger, in the weakest place, that is, in the fundus, there will be atrophy, tissue thinning or even rupture. For such situations, The current treatment effect is limited, and some people are blind. Myopia is not only as simple as wearing glasses. Once myopia occurs, it is irreversible. Especially children who have myopia at a young age are more likely to become high myopia, causing vision damage. The complications of fundus caused by high myopia mostly occur after the age of 40 and 50, which may have a great impact on the future work and elderly life.

  Many people now have a misconception that laser myopia surgery can treat myopia. Laser surgery is also known as corneal refractive surgery in medicine. It specifically refers to surgery performed on the human cornea. Most people correct the refractive of the eye by changing the shape of the corneal surface, including myopia, hyperopia, and astigmatism. The rapid development of surgery is currently divided into three categories: full femtosecond, half femtosecond, and crystal implantation. By examining the patient's lens thickness and the degree of myopia to determine whether it can be operated and what surgical plan to take.

  Laser surgery does not mean it is once and for all. Laser surgery only makes the cornea into a pair of glasses, but the patient’s own eyes are still in the structure of myopia. Even if laser surgery can correct myopia and remove the glasses, it cannot change the deformed eyeballs and the fundus of the disease, and it cannot reduce blindness. And the risk of visual impairment, if the bad eye habits are not changed during the later treatment recovery, then the degree will still increase. Therefore, the prevention of the occurrence of myopia and the rapid increase of the degree of myopia are of great significance for the prevention of the possible serious harm caused by myopia.

  In the era of electronic information, electronic products can be seen everywhere, and electronic products have become an important way for us to obtain information, especially during the epidemic, when young people stay at home during online lessons, which increases the time to use mobile devices and electronic devices, which brings myopia prevention and control Challenge.

  In this regard, experts pointed out that on the one hand, we need to actively promote the setting of national evaluation standards and industry standards for electronic products to ensure that the quality of electronic products produced is qualified. On the other hand, it is necessary to advocate the advancement of knowledge and information while advancing with the times, and to promote the knowledge of eye-loving science, so that everyone knows how to use electronic products in a reasonable manner. It is necessary to do a good job of "three 20s", that is, use the eyes for 20 minutes, look at 20 feet for more than 20 seconds, control the length of use of electronic products, and develop good eye habits.

  Experts from the National Health and Health Commission's CDC said that after the resumption of the class, the principle of "outdoor 120 minutes" should still be adopted for the prevention and control of children's myopia. It is best to guarantee more than 2 hours of outdoor activities for children every day. For children who are already short-sighted, outdoor activities should be carried out for a longer period of time, especially to increase the time children are exposed to the sun, which is very important to prevent short-sightedness. (Guan Yue)