The manual for the prevention and control of myopia in children and adolescents issued by the National Health and Health Commission pointed out that 2 hours of outdoor activities a day can effectively prevent the occurrence and development of myopia.
When it comes to outdoor activities, some parents may ask, children want to go to school or weather reasons, sometimes do not guarantee children 2 hours a day outdoor activities, so indoor activities can be? Focus on weekend outdoor activities line...
Come, let's talk to you about "outdoor activities and myopia prevention and control"
Outdoor activities can prevent and control myopia
In a study of 571 7 11-year-old students, students were encouraged to go outdoors by intervening in a group of students by turning off classroom lights between classes and emptying classrooms. The other group acts as a control and does not interfere with any intervention.
After 1 year of follow-up survey, the results show that the new incidence of myopia in children who empty the classroom and children who do not do any intervention are 8.41% and 17.65%, respectively, which shows that outdoor activities between classes have a significant effect on preventing the occurrence of myopia.
Why outdoor activities can prevent myopia
Further research has shown that outdoor activities can prevent myopia for the most important reasons as follows:
1
Sunlight promotes the secretion of vitamin D
At present, most children's myopia is caused by the axial elongation of the eye axis, and the outdoor sufficient sunlight can promote the body to secrete more vitamin D, enhance the elasticity and surface tension of the eyeball wall, and make the eye axis not easy to elongate;
2
Sunlight promotes the secretion of dopamine
Plenty of outdoor sunlight can also promote the body to secrete more dopamine, and dopamine can effectively inhibit the growth of the eyeball, thus playing a role in preventing myopia;
3
Sunlight promotes eye muscle regulation
In full sunlight, the pupils will shrink and the depth of field will increase, which can make it easier for the eyes to see objects and prevent eye fatigue.
In fact, to put it bluntly, it is that enough light outdoors is conducive to improving vision, so even if you stand outdoors, the probability of myopia will be lower than that of children who stay indoors.
In fine weather, please take your children out to play
What to pay attention to in outdoor activities
Although outdoor sunlight is good, it also needs to be used rationally.
The light is too strong, it is easy to damage the eyes, and you need to pay attention to sun protection. When the sun is strong and you need to go out, it is recommended to wear a hat and sunglasses.
In addition, the time of outdoor activities is also important. At present, the study believes that the minimum outdoor time of 10 hours per week is evenly distributed to about 2 hours a day, and the effect is the most ideal
Plenty of natural light outdoors is so important for vision
Indoors should also allow children to learn in a well-lit environment
Choose an eye lamp with a light source close to the sun's rays
Hasbro full spectrum eye protection lamp, the spectral curve is close to the spectrum of sunlight, and the illumination effect is as soft as natural light;
Don't watch TV in the dark and play electronics
When playing electronic products, the room environment should also be kept bright, so that the brightness of the surrounding environment and the brightness of the screen are close;
Pay attention to the placement of the study table
Children's learning tables should be placed by the window or other well-lit positions as much as possible.