Contact lenses are not recommended. Because wearing contact lenses is troublesome and requires high hand hygiene, it is easy to cause dry eyes and redness after wearing them for a long time. Children's myopia is related to Dachuan inheritance. If parents or grandparents are nearsighted, they are more likely to inherit.
Some myopia is caused by bad eye habits, such as reading and writing in dim light, playing electronic products for a long time and seeing things too close. Before choosing frame glasses, children should do mydriasis besides optometry. If myopia disappears after mydriasis, it is pseudomyopia, and normal vision can be restored by changing the environment and eye habits.
Methods to prevent myopia:
1, insist on adequate outdoor activities during the day. Take children for outdoor activities for more than 2 hours during the day. Outdoor activities are activities in which sunshine and fresh air are partners, and all senses participate in the form of individuals or groups. For example, playing with children in water and sand, playing with balls, walking on stilts, jumping lotus leaves, jumping squares and so on. It not only satisfies the active nature of children, but also increases the closeness to nature.
2. Keep correct reading and writing posture. Adhere to the "three ones", that is, the eyes should be one foot away from the book, the chest should be punched from the edge of the table, and the fingers holding the pen should be one inch away from the nib. Continuous use of eyes for reading and writing should not exceed 40 minutes. To maintain a correct reading and writing posture, the first thing is to keep the distance between the eyes and the book or desktop far enough, generally about 33 cm, which can effectively avoid the decline of eye vision. The second is to keep the upper body upright, and the head must not lean forward, let alone lie on the table. In addition, the desks and chairs for teenagers to read and write must meet the standards, and you can choose desks and chairs that match the height of teenagers, which is conducive to maintaining a good reading and writing posture.
3. Avoid bad reading and writing habits. Don't read, write or use electronic products while walking, eating, lying in bed, in a rickety carriage, in dim light or in direct sunlight. To prevent myopia, we should avoid bad reading and writing habits and educate children not to read books under strong light, because sunlight contains ultraviolet rays and infrared rays, which will damage the cornea.
4. Control the time of using electronic products. After studying with electronic products for 30-40 minutes, take a rest and relax 10 minute. The use of electronic products for non-learning purposes shall not exceed 15 minutes at a time and 1 hour every day. Children under 6 years old should try to avoid using mobile phones and computers. Parents should use electronic products as little as possible in front of their children. Generally speaking, try to avoid using electronic products within 3 years old. If you really want to use it, you'd better control it within 10 minute. 3-6 years old, each use time is controlled within 20 minutes, and the daily use is controlled within 1 hour. Pupils should be controlled within 1-2 hours every day, and their eyes should rest every 20 minutes 10 minutes. Middle school students spend half an hour at a time, and then let their eyes rest for about 10 minutes. In addition, we must maintain good eye habits and ensure that we can punch one foot and one inch.
Tips;
Of course, if you have 200-degree myopia, you should get glasses as soon as possible. What kind of glasses to wear depends, of course, on your personal financial ability. As far as lenses are concerned, aspherical lenses will be better. Generally speaking, before wearing glasses, you should go to the ophthalmology department of a professional hospital for mydriasis optometry to determine the correct degree. Don't go to the optical shop on the street for optometry.