My suggestions are as follows.
1. Select the appropriate electronic products. When choosing electronic products, screen size is very important. If possible, try to choose electronic products with larger screens.
The suggested priorities are projectors, televisions, computers, tablets, and finally mobile phones. It's best to project the stadium on a big screen or link it to a bigger screen TV, so that you can watch it at a distance of more than 3 meters and avoid using your eyes at close range. Try to choose electronic products with high screen resolution to reduce eye discomfort and fatigue. It's best to choose a computer with an LCD screen, and adjust the brightness of the screen to a comfortable state, not too dazzling.
2. Pay attention to your eyes. When using the mobile phone and computer, try to consciously remind yourself to blink more, blinking 12 ~ 16 times per minute, completely closing and then opening, to ensure that the tears fully wet your eyes.
3. Hot compress is an effective way to relieve eye dryness and fatigue. The method of hot compress is to put a hot towel at about 60℃ on your closed eyes. Such simple eyelid hot compress can stimulate lacrimal gland secretion, promote eye blood circulation, and reduce the occurrence of discomfort such as dry eye.
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4. A reasonable diet is good for eyes and helps to prevent myopia. Be careful not to be picky about food, balance nutrition and eat more fruits and vegetables.
Faced with this situation, schools are not allowed to start classes, and students can only watch computers or mobile phones at home for classes. At the end of the day, the eyes will take longer than usual, and the blue light on the screen will do more harm to the eyes. Students taking online classes should understand the dangers of watching the screen for a long time.
First of all, you need to understand the harm of facing the computer for a long time.
1, insomnia, endocrine disorders
Because the temperature of the monitor is very high, it will produce more radiation when it works, which will cause the current to act in the air and produce positive ions continuously. The positive ions will combine with negative ions to reduce negative ions, which is useless to the body.
When students breathe, positive ions are inhaled into the lungs and then transmitted to various tissues along the lungs, which delays the normal metabolic function of the body, poisons the body, leads to insomnia and decreases immunity.
2, skin allergies
An electrostatic field will be formed around the turned-on monitor, which can almost suck the dust suspended in the air of the whole room to its own surroundings, so that the students' facial skin will be stimulated, allergic and rash.
3, eye fatigue
The picture on the monitor has been flashing, but we can't see it with the naked eye. Students usually stare at a given point when looking at the screen, and rarely blink, so their eyes are easy to get tired, dry, red, swollen and painful.
Second, the rescue method
Blue light and radiation on the screen do great harm to the eyes. Since classes can only be conducted through mobile phones or computers, how should students protect their eyes?
1, have a rest.
Students should stop studying so hard and know how to rest. You can close your eyes and rest for 5- 10 minutes from time to time. You can also walk around the house, look out of the window and have a look.
Step 2 plant green plants
Green plants can reduce the harm of electromagnetic radiation and purify the air. Putting them next to the computer can help absorb radiation, which is also beneficial.
3. Eat more food that is good for your eyes.
Watching a computer or mobile phone for a long time will reduce your eyesight. If you want to have good eyes, you should eat some food that is good for your eyes in your diet. Such as eggs, fish, fruits and vegetables. Carrots, in particular, are rich in vitamin A and are good for the eyes.
4. Add lutein
Lutein is a carotenoid in plants, which can't be synthesized by human body, so it needs extra supplement. Because lutein has antioxidant capacity, it can filter blue light and improve visual ability.
At present, parents are most worried about students' eyes. We are in a technologically advanced society, and we have to face a lot of radiation every day, so we can only protect our eyes.
Put some cream on the computer. It can reduce radiation. If your monitor is relatively new, you should support a refresh rate of 85 Hz, so that the displayed image will not flicker or be unclear. The resolution is usually the recommended value displayed in 1024*768. If you do paperwork, your eyesight is not very good. It can be adjusted to 800*600. If you make a CAD drawing, it's better to be 1024*768. And set the taskbar to auto-hide. In addition, it is suggested that drinking more green tea can reduce the radiation hazard of monitoring personnel. Second, consider replacing crt screen with LCD to protect your eyes.
Hello, I'm Sister Cheng Xiao. I am glad to answer this question, because my family also has a first-grade child who also needs to take online classes on TV every day, so it hurts my eyes. My method is as follows: 1. Every time I let him finish the online class, I will let him do eye exercises for ten minutes. Then I will take her to the balcony and look into the distance. Finally, I will show him the green plants planted at home. I think these three points are quite effective. But I think the most important thing is to control the time for children to watch TV online, which is the most fundamental. This is my answer, I hope I can help you.
It's definitely not good for your eyes to face the computer or mobile phone at close range. You can connect the TV and let the children have classes.
After class, you must let your eyes