Affected by the epidemic, the online teaching of primary and secondary schools in Shanghai has been more than a month. Online learning has greatly increased children's screen time. During special periods, children's eye health problems have also followed. Tears, red eyes, rubbing your eyes... If you don't pay attention to protection, you will develop myopia and wear glasses, and you will become a "little doctor" in the class.

　　On the evening of April 15th, initiated by Shanghai Jiaotong University School of Medicine, led by Fan Xianqun, academician of the Chinese Academy of Engineering, dean of Shanghai Jiaotong University School of Medicine, and leader of the Department of Ophthalmology of the Ninth People's Hospital affiliated to Shanghai Jiaotong University School of Medicine, 10 well-known ophthalmology experts in Shanghai Jointly join hands to bring parents and children "Care for the "eyes" and the perfect "vision" world - home online classes, how to protect your eyes?

” special program, focusing on home-based online classes, eye health protection strategies; air classes, eye fatigue solutions, two major themes, providing students with scientific eye health protection strategies.

　　What are the effects of online classes on children's eye health?

Fan Xianqun summed up "two more and two less", "two more" refers to online classes at home, more time using electronic screens and more eyesight at close range.

"Liang Shao" refers to less activities at home and less outdoor light. In addition, during the epidemic, children may also experience problems such as uneven nutrition, insufficient vitamin intake, anxiety and other psychological pressures, which will also affect eye health. certain influence.

　　In response to these problems, Fan Xianqun offered five solutions: First, reduce screen time.

In addition to online learning time, screen time for other purposes should not exceed 15 minutes at a time, and should not exceed 1 hour per day, so as to minimize the total screen time.

Second, choose large screen fonts.

Choose electronic products with large screens as much as possible, such as projectors or TVs, use less iPads or mobile phones, and make fonts larger.

Third, look into the distance during recess.

Look out of the window more often during recess to allow your eyes to fully relax and rest.

Families with conditions can do some indoor sports and radio gymnastics as appropriate.

Fourth, remember the three ones.

When reading, keep your eyes 1 foot away from the book, chest 1 fist away from the table, and fingertips 1 inch away from the tip of the pen, and maintain an upright sitting posture.

Fifth, scientific use of eyes to prevent myopia.

For children who are already short-sighted, how can we control the deepening of our "small glasses"?

There is a simple "three 20s", resting the eyes every 20 minutes, blinking 20 times, and looking 20 meters away.

　　What kind of desk lamp is the most eye-friendly?

Zou Haidong, vice president of the First People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine, said that the national recommended standard for home desk lamps (GB/T 9473-2017), the color temperature is light yellow, which is more suitable for reading and writing, the desktop illumination is 500-1000LX, the color rendering index is high, and no Strobe.

　　Adequate sleep is also very useful for the prevention and control of myopia. Liu Lin, director of the Department of Ophthalmology of Renji Hospital Affiliated to Shanghai Jiaotong University School of Medicine, recommends that primary school students should reach ten hours, junior high school students should reach nine hours, and high school students should reach eight hours, so that the eyes can get the best results. Get plenty of rest and relaxation.

　　Zhu Huang, director of the Department of Ophthalmology Laser Diagnosis and Treatment of Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, reminded everyone to choose the largest electronic equipment screen for home study, projectors are the best, followed by large-screen TVs, followed by computers, ipads, and small-screen mobile phones. Difference.

　　(Tong Kuan, correspondent of Meng Xindi, all-media reporter of Guangming Daily)