Summer vacation is coming soon, and children may spend significantly more time watching TV, computers, and mobile phones at home. This may cause parents to worry more about their children's myopia: Will children become more susceptible to myopia if they always watch electronic screens? In the information age, how to use electronic products scientifically and rationally has become a headache for parents. Faced with the inevitable exposure to electronic products in some cases, how to minimize the adverse effects and keep children away from myopia?
The impact of electronic products on vision
First of all, we need to understand the harm that electronic products do to the eyesight of children and adolescents. In children and adolescents, vision is still in the development stage. Long-term use of electronic products will cause excessive eye load, resulting in vision loss and myopia. Sometimes improper use can lead to dry eyes, visual fatigue, and even some organic eye diseases.
How should electronic products be used?
Reasonably control usage time. If you watch an electronic screen continuously for 20 to 30 minutes, you need to take a break of at least 10 minutes. During the break, you can look at the outdoor scenery 6 meters away, roll your eyes to relax your eyes, do some indoor exercise, etc. In addition to online learning, the time spent watching electronic screens for entertainment purposes needs to be strictly controlled. The younger you are, the less time you should spend.
Choose the right product. Try to choose electronic products with large, high-resolution screens. As for the large-screen home projections that have become popular in recent years, we cannot blindly pursue "bigness". We cannot ignore indicators such as light output value, screen illumination uniformity, brightness, and contrast, which must meet relevant national standards.
Meets horizontal viewing distance. For products such as large-screen TVs and projections, the viewing distance must be no less than four times the diagonal length of the screen. For example, a 40-inch TV needs to be viewed 4.36m away. In addition, the horizontal viewing distance of computers is not less than 50 cm, and the viewing distance of mobile phones is not less than 40 cm.
Preventing and controlling myopia also requires the following:
1. When studying or working with your eyes, you must ensure a suitable environment. It is very important that the light is sufficient but not dazzling. If you study or work in dim conditions, it is easy to cause visual fatigue.
2. Correct sitting posture is very important for protecting eyesight. First, don’t get too close to the interface you’re reading. Secondly, you must keep your body straight and do not read or look at electronic products while lying down, lying down, walking, taking a bus, etc.
3. Pay attention to eye hygiene at ordinary times, do not rub your eyes with dirty hands, and do not wear contact lenses frequently to avoid problems such as keratitis and conjunctivitis.
4. Eating more fruits and vegetables can help protect your eyesight. In addition, do not eat junk food, do not eat sweets with high sugar content, and do not drink sweet drinks, because excessive blood sugar concentration can seriously damage vision.
5. Spend enough time exercising outdoors every day to relax your body and mind and improve blood circulation throughout your body to protect your eyesight. For teenagers, it is best to have 2 hours of outdoor activities every day.
Post time: May-17-2024