How to use electronic products scientifically to prevent the occurrence of myopia?

In recent years, electronic products have penetrated into every aspect of our life, study, and work, and home learning has become one of the learning methods for children and adolescents. In the information age, how to use electronic products scientifically and rationally has become a headache for parents. Faced with the inevitable contact with 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, we need to understand the harm that electronic products can do to the vision of children and adolescents. Dai Hongbin, chief physician, member of the standing committee of the Ophthalmology Branch of Hubei Provincial Chinese Medicine Association, and director of strabismus, amblyopia and pediatric ophthalmology at Wuhan University Aier Eye Hospital (Aier Eye Hospital Group Hubei General Hospital), said that during the period of childhood and adolescence, vision is in the development stage. Long-term use of electronic products will lead to excessive eye load, resulting in decreased vision and myopia. Sometimes, improper use can lead to dry eyes, visual fatigue, and even some organic eye lesions.

How should electronic products be used?

Reasonably control the use time. If you look at the electronic screen for 20 to 30 minutes continuously, you need to rest for at least 10 minutes. During the rest time, you can look at the outdoor scenery 6 meters away, move your eyeballs to relax your eyes, and do some indoor exercise. In addition to online learning, the time spent watching electronic screens for entertainment purposes needs to be strictly controlled. The younger the age, the less time should be spent.

Choose the right product. Try to choose electronic products with large-size and high-resolution screens. As for the large-screen home projectors that have become popular in recent years, you cannot just pursue "bigness". You cannot ignore indicators such as light output value, screen illumination uniformity, brightness, contrast, etc. They must meet relevant national standards.

Meet the horizontal viewing distance. For large-screen TVs and projectors, the viewing distance should be no less than four times the diagonal length of the screen. For example, a 40-inch TV needs to be viewed from 4.36m away. In addition, the horizontal viewing distance for computers should be no less than 50 cm, and the viewing distance for mobile phones should be no less than 40 cm.

Provide appropriate lighting conditions. Avoid using electronic products in dim light, especially in the dark. It is absolutely unacceptable to play with your phone while lying down before going to bed!

Director Dai Hongbin reminded parents that in addition to improper use of electronic products, any bad eye habits may lead to myopia in children and adolescents. Parents need to strengthen education, guidance, supervision and inspection. Once children have symptoms such as frequent blinking, squinting and tilting their heads to see things and cannot be relieved, they need to go to the hospital for treatment as soon as possible. Of course, parents should also set an example in their daily lives, put down their mobile phones, participate in outdoor activities with their children, and let parents accompany their children instead of "electronic nannies" to prevent myopia from "taking advantage".