Nowadays, electronic products are used more often,
Take online classes, watch videos, play games
…
Time passed without realizing it,
Eyes are inevitably uncomfortable,
At this time, the words always come to my ears:
The eyes are tired The eyes are tired html l5
Just look at the green stuff and relax
"Looking at green can protect your vision" The sentence "Looking at green can protect your eyesight" has really been deeply rooted in people's hearts. Many friends will also deliberately set the screensaver of your phone and computer to green. Some parents also specially place a small pot of green plants on their children's desks...
But is this really effective?
Can green protect your eyesight?
doesn't work!
In fact, green has nothing to do with protecting eyesight.
human vision is related to the state of maintaining the ciliary muscles of the eye. The reason why we feel eye fatigue is that is because of long-term use of the eyes, which causes the ciliary muscles of the eyeball to be in a highly contracted state and cannot get relaxed . Over time, myopia will also develop.
That is to say, as long as the ciliary muscles of the eyeball cannot be relaxed, no matter how much green it looks, it will be useless. The eyes will still feel tired .
Some people may ask this, how did the green statement that protects eyesight from come from?
This is because green is not as dazzling as other colors and will give people a comfortable feeling. As one of the three primary colors, the wavelength of green light is between 500-570nm and is located in the center of the visible spectrum, making it easier for people to see green.
So, seeing green feels comfortable is a psychological factor, not really protecting your eyes. Develop good eye-using habits and strictly control the time and distance of eye use, which is the best way to protect your eyesight!
How to do correct eye protection?
1. It is recommended to exercise for at least 2 hours outdoors in the sun every day, and it is recommended to have longer for children and adolescents in myopia.
From the perspective of preventing myopia, the key to day outdoor activities is outdoor, not activity content, method and intensity. At the same time, outdoor activities should be arranged according to the location and time, and pay attention to safety, replenish moisture and avoid direct light.
2. For children and adolescents, it is also important to correct their reading and writing postures. achieves "three ones, no tilts".
The so-called "three ones" are "one punch, one foot, one inch": one punch, one punch, one punch, one fist, one foot, one foot, one foot, one foot, one inch, one inch, one finger, one inch, and one inch, one inch, one finger, and one nib, between the tip of the pen, and the pen.
also emphasizes "not tilting your head". Long-term tilting your head to read books and do homework can easily cause myopia in one eye. Parents and children should pay special attention.
3. Control the video time and select larger screen electronic products.
Cumulative entertainment video time for school-age children and adolescents should not exceed 2 hours per day. To prevent myopia, it is advisable to control it within 1 hour, and rest for 3 to 5 minutes in half an hour.
Online learning time, primary school students do not exceed 2.5 hours per day, no more than 20 minutes per time; middle school students do not exceed 4 hours per day, no more than 30 minutes per time.
In addition, the size of the screen is very important when choosing electronic products. If conditions permit, try to choose electronic products with larger screens and watch them as far as possible.
Recommended priority is projectors, TVs, computers, tablets, and finally mobile phones. It is best to project videos onto large screens or TVs linked to larger screens, increase viewing distance, and try to choose electronic products with higher screen resolution to reduce eye discomfort and fatigue.
4. Have adequate sleep, regular work and rest, balanced nutrition, and no partial diet.
The growth and development of eyes requires abundant nutrition. Eat a balanced diet, not picky or partial to eating.Eat more fruits and vegetables, and consume high-quality protein such as fish, soy products and eggs. You can also pay attention to eating foods rich in vitamins such as carrots and blueberries, which are beneficial to the eyes, which has a positive effect on maintaining normal growth and visual function. recommends eating less sweets and sugary drinks.
5. The most important thing in protecting eyes is to to let your eyes rest well and don’t be too tired.
Remember 20 - 20 - 20 Principle:
means looking at 20 feet (about 6 meters) away for at least 20 seconds every 20 minutes using the computer. If you are too busy with work and cannot rest frequently, it is recommended to use your eyes continuously for 45 minutes and then take a rest for 5 minutes.
So, if you want to protect your eyes, might as well put down your phone and let your eyes rest! If you really want to see the green, then blink and look at the trees outside the window.
Source: Jiangsu Disease Control
