Chinanews.com client, Beijing, May 10 (Song Yusheng) During the prevention and control of the New Coronary Pneumonia epidemic, children and adolescents go online and write homework at home. How can they ensure that children use their eyes scientifically during their studies? Are some of the methods recently claimed to be beneficial for children's visual fatigue really effective?
At the press conference of the Joint Defense and Joint Control Mechanism of the State Council held on May 10, the National Health and Health Commission and several experts responded to these issues.
Information figure: Elementary school students wear masks to participate in outdoor activities. Photo by Liu Wenhua
Children's increased outdoor activities are not in conflict with epidemic prevention and control
Recently, the National Health and Welfare Commission issued "Guidelines on the Prevention of Myopia during New Coronary Pneumonia in Children and Adolescents", which specifically mentions that outdoor sports should be increased, but many parents also worry that increasing outdoor sports may increase the risk of infection.
In this regard, Wang Bin, the inspector of the National Health and Health Commission's CDC, said on the 10th that proper outdoor exercise can not only improve the health of children, but also play a very important role in preventing and controlling myopia in children and adolescents.
As for the concerns of parents, she clearly pointed out that the increase of children's outdoor activities does not contradict the prevention and control of the epidemic, but prevention and control should be done well.
Wang Bin reminded that children should avoid close contact with others as much as possible during outdoor activities, avoid getting together, and wear masks when they need to communicate with other children or other people. At the same time, parents should pay attention to children's hygiene, especially hand hygiene.
She said that the epidemic has gradually entered the stage of normalization prevention and control, more and more schools are preparing to resume classes, and even some provinces have already resumed classes. After the resumption of class, it is best to ensure that children spend more than 2 hours a day outdoors. At the same time, it is necessary to ensure that the time is wrong, the peak is wrong, and the distance of the students' physical activities is increased. "It should be ensured that the child can indeed walk out of the classroom, not in the classroom."
Data Map: During epidemic prevention and control, students are taking online courses. Photograph by Le Yan
Children's desks and chairs cannot be replaced with dining tables and chairs
However, during the epidemic prevention and control period, the children's outdoor activity time is limited. Children are going online at home, writing homework, and spending a lot of time on the seats. What are the issues that need to be paid attention to in the setting of desks and chairs?
Guo Xin, director of the School of Public Health of Beijing Center for Disease Control and Prevention, pointed out that desks and chairs that match the height of children can protect eyesight and prevent myopia. Inappropriate tables and chairs will have a great impact on sitting posture and sight distance, causing diseases such as myopia and spine curvature.
She emphasized that the home should be equipped with special desks and chairs for learning, instead of using dining tables, dining chairs or beds. Dining tables and dining chairs are often too high, but the beds are soft and low, which cannot replace regular desks and chairs.
She also reminded that during the prevention and control of the New Coronary Pneumonia epidemic, the placement of school desks should be increased. In addition, each semester should be personalized for the height of the students' desks and chairs to ensure that each child can get a desk and chair that matches his height.
Data Map: In March this year, students were in class on the first day of "Cloud Start". Li Jieshe
Buy children's electronic product screens to "Ningda is not small"
In addition, there are still many children studying online at home through TVs, mobile phones, and computers.
In response to the question of how to choose electronic products to better protect children's eyesight, Wei Wenbin, deputy director of Beijing Tongren Hospital and director of ophthalmology, said that the choice of video tools should adhere to the principle of "Ning Da is not small". Tablet PC, mobile phone.
He also emphasized that the use of electronic products must follow the "20-20-20" formula, that is, after looking at the screen for 20 minutes, you must look up at 20 feet, which is more than 20 seconds at 6 meters away.
Wei Wenbin also pointed out that there is currently an excessive interpretation of the hazards of blue light in society, and the prevention of blue light and visual fatigue is not directly related to the prevention and control of myopia.
He said: "Blue light is divided into long-wave blue light and short-wave blue light. Only short-wave blue light will affect eye health, but this requires long-term, high-intensity, uninterrupted exposure. Electronic products that have passed quality inspection have filtered harmful short-wave blue light, so in In daily life, we use electronic products produced by regular manufacturers, and there is no need to install anti-blue light equipment. "
Data map: Primary and middle school students check their eyesight with their parents. Wei Liangshe
Can "eye-browing and eye-lifting" eye exercises etc. relieve eye fatigue?
At present, some schools have launched "eyebrow squeezing" eye exercises, and some people use 0.01% atropine eye drops to prevent myopia. Do these methods help relieve visual fatigue?
Wei Wenbin believes that the recent eye movements such as "squeezing eyebrows" and "twisting the head and tilting the brain" are actually extraocular muscle movements. For some children who need to train binocular vision, oblique amblyopia There is a certain help, but it does not relieve the fatigue of the muscles in the eye well, so it cannot slow the development of myopia and visual fatigue.
Although studies have shown that 0.01% of atropine can delay the development of children's myopia. But Wei Wenbin made it clear that this is not a magic drug. "Some children will be afraid of light, seeing things unclear at close range, allergic reactions to atropine, etc. after use, and some children cannot effectively control the progress of myopia after use. So don't rely on eye drops to prevent and control myopia."
Wei Wenbin said that preschool children should try to reduce the use of electronic products. The time for watching cartoons should not exceed 15 minutes each time, and the cumulative time per day should not exceed 1 hour.
Data Map: Teachers interact with students through professional teaching software. Photo by Zhang Hengwei
Health knowledge is the best "eye protection" for children
Wang Bin pointed out that health knowledge is the best "eye protection" for children.
She believes that the school should carry out extensive health education for children, so that children can deeply understand, take care of your own eyes, and you are the first person responsible for preventing myopia. "Only if he takes the initiative to realize this, can we safely let the children take the initiative to prevent myopia."
"At the same time, children can further understand the use time of electronic products in this process, maintain a correct sitting posture, reasonably arrange daily life, and pay attention to their hand hygiene and eye health. Such knowledge mastery is very beneficial for children to prevent myopia. "
Wang Bin said that the school should ensure that children have sufficient outdoor physical education classes and 30-minute large classrooms and other outdoor activities, these should be the basic conditions provided by the school to prevent myopia. (Finish)