During the epidemic, online learning
It is important to protect vision
Care for the health of the eyes · Stay away from myopia
During the epidemic
Many children and adolescents
learn knowledge through the online form of "online courses" at home
Increase in the use of electronic products and the decrease in outdoor activities
Increase the risk of myopia h
Today, the editor has compiled some online learning and eye-use knowledge
I hope everyone can use their eyes scientifically and stay away from myopia
Learn online
2 When using electronic products, please pay attention to the following points
(I) Reasonably arrange the online learning time
Online learning time, primary school students do not exceed 2.5 hours per day, each time does not exceed 20 minutes; middle school students do not exceed 4 hours per day, each time does not exceed 30 minutes.
reduces the video time except online learning. Except for the online education time arranged by the education department, the cumulative video time for other purposes shall not exceed 1 hour per day.
(II) Selection of electronic products
1. Choose large-screen electronic products as much as possible, with priority orders such as projector, TV, desktop computer , laptop, tablet, and mobile phone.
2. Electronic products with high screen resolution and suitable definition should be selected.
3. When using electronic products, adjust the brightness until the eyes feel comfortable, and do not be too bright or too dark.
(III) Placement of electronic products
1. The placement of electronic products should avoid direct exposure to windows and lights, and face the window on the side of the screen to prevent the screen from reflecting and irritating the eyes.
2. When using a projector, the viewing distance should be more than 3 meters; when using a TV, the viewing distance should be more than 4 times the diagonal distance of the screen; when using a computer, the viewing distance should be more than 50 cm (about one arm long).
3. When placing electronic products (such as computers), the upper end of the screen should be kept flush with the horizontal line of sight of the eyes.
Reading and writing postures must be correct
During online learning, children and adolescents should adjust their holiday learning arrangements in time to meet the following reading and writing requirements.
1. When watching the screen and listening to the class, you can keep your shoulders relaxed, your upper back expanded, your upper arm is at a 90-degree angle with your forearm, and your wrist is relaxed, and your breathing regularly.
2. When watching video screens to do homework, the reading and writing posture should be "one foot, one punch, one inch": the eyes are about one foot away from the book (about 30 cm), the body is about one punch from the desk, and the fingers are about one inch away from the tip of the pen.
3. Do not lie on the bed or on the sofa to learn.
eye relaxation is important
online learning, increasing active rest time can not only relax ciliary muscle and relieve eye fatigue, but also slow brain fatigue, improve learning efficiency, and relieve tension.
1. Continuous video learning time exceeds 20-30 minutes, and at least 10 minutes of active rest.
2. During the video learning process, consciously close your eyes and open them with a little force, turn your eyes up, down, left and right, and relax your eyes.
3. After online learning, you can stretch your waist and arms, and you can walk indoors, do gymnastics, squats, sit-ups, etc.; clean your hands and do eye exercises ; stand in front of the window, balcony or door, and look into the distance (more than 6 meters).
4. During home isolation, you can bathe in the sun through the balcony, window or from the home yard and get in contact with natural light.
Eye hygiene should be paid attention to
Maintaining hand hygiene habits is an important factor in ensuring eye health. Washing your hands frequently can prevent viral and bacterial infections and effectively prevent eye infectious diseases.
1. Wash your hands before and after meals and after going home, and use the "7-step hand washing method" and ensure more than 20 seconds.
2. Don’t rub your eyes with your hands.
3. If the eyes have symptoms such as dryness, foreign body sensation, burning, itching, photophobia, red eyes, and eye pain, the visual behavior should be stopped. If the symptoms cannot be relieved, go to the hospital if necessary.
4. When children are found to have symptoms related to myopia such as tilting their heads, frequent squinting and squinting, they should rest and exercise in time and go to the hospital for treatment if necessary.
During online learning, in addition to the above points,
Maintain good eye habits
Ensure regular work and rest, adequate sleep and proper physical activity
are all very important ~
Reference materials: "Guidelines for the Prevention of Myopia during the COVID-19 Epidemic of Children and Adolescents (Updated Version)"
