Three causes and prevention of myopia in children

Abstract: most of the games of children and adolescents in modern cities focus on indoor entertainment, such as TV, personal toys, game consoles, computers, etc., which is not conducive to eye relaxation and rest. Therefore, parents should often take their children out to play, encourage their children to change their game methods and participate in outdoor game activities.

vision loss has become a serious health problem for teenagers and children in China. The results of physical health monitoring of Chinese students in 2004 released by the Ministry of education show that the detection rate of poor eyesight is 32.5% for pupils aged 7 to 12, 59.4% for junior middle school students, 77.3% for senior high school students and 80.0% for college students. Recently, the physical health monitoring results of students in Jiangsu Province in 2011 released by the Department of education of Jiangsu Province showed that in 2011, the myopia rate of students under the age of 22 in Jiangsu Province was 67.8%. An epidemiological survey on the incidence of myopia among adolescents and children in Guangzhou conducted by Zhongshan ophthalmology center of Sun Yat sen University in 2010 showed that 78.4% of Guangzhou’s 10-15-year-old children were “Four Eyed children”, and the lens power was increasing by at least 100 degrees every year.

in view of the causes of myopia among Chinese teenagers, Professor Zheng Yuanyuan of Ophthalmology of Beijing Tongren Hospital believes that there are three main factors, namely genetic factors, nutritional and physical factors and environmental factors. Environmental factors are the main causes of the incidence rate of myopia in China. Teenagers are in the vigorous period of growth and development. The physiological function and organizational structure of eyes have different characteristics from other periods. They have strong regulation, large ball wall extension, and are vulnerable to adverse environmental effects to form myopia. Watching TV for a long time, playing computer games, incorrect reading and homework posture are all bad environments that are easy to cause teenagers’ myopia at this stage, especially watching TV. Too long staring at TV will produce eye fatigue. Excessive eye is an important factor in the incidence rate of myopia in adolescents. According to the statistics of the United States in 1988, children’s vision can be reduced by 30% if they watch color TV for more than one hour.

prevention of juvenile myopia should start from every family. Parents should shoulder the important supervision responsibility in the family environment. Specifically, we can start from the following aspects:

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turn the game to outdoor

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the game mode of modern urban children and adolescents is mainly indoor entertainment, such as TV, personal toys, game consoles, computers, etc., which is not conducive to the relaxation and rest of the eyes. Therefore, parents should often take their children out to play, encourage their children to change their game methods and participate in outdoor game activities.

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pay attention to eye hygiene. When reading and writing,

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should sit upright and achieve three “ones”: the hand holding the pen is one inch (3.3 cm) away from the pen tip, the chest is one fist (6 ~ 7 cm) away from the table, and the book is one foot (33 cm) away from the eye. Do not read while walking, riding or lying down to reduce eyesight fatigue. The operation time should not be too long. After learning for 45 minutes, you should rest for 10 ~ 15 minutes or look into the distance. You can also do eye exercises to make the ciliary muscles rest properly. Don’t read or write under the strong sun or dark street lights, and don’t watch TV programs for a long time at a close distance, so as not to cause visual fatigue and tension. Don’t indulge in game consoles and TV.

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pay attention to eye health care

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insist on doing eye health exercises and crystal exercises every day (rhythmic fast alternating looking far and near); Self acupoint massage (Qingming, zanzhu, fish waist, silk and bamboo air, Chengqi, Sibai, etc.).

reasonable diet and adequate sleep

research shows that the lack of trace elements such as calcium, zinc and chromium in the body can induce myopia, especially high myopia, and partial eclipse is not conducive to eye health care. Those who use their eyes excessively should eat more foods rich in vitamin A, such as animal liver, carrots, egg yolks, fresh vegetables, melons, fruits and bean products. In addition, adequate sleep time shall be ensured, with primary school students not less than 10 hours and middle school students not less than 9 hours.

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should go to the hospital for examination and treatment in time. If children’s vision is found to be decreased, they should go to the hospital for eye examination in time to determine whether they need to wear appropriate glasses to correct their vision. Contact lenses are not recommended, let alone laser surgery with children. At the same time, the time of close eye use is controlled to slow down the deepening speed of myopia.

finally, it is worth mentioning that some parents prematurely push their children into the learning competitive environment driven by the desire for success, which is also related to the high myopia rate of their children. A survey conducted in Haidian District, Beijing found that children in high-income and highly educated families are more likely to suffer from myopia, especially in families with high mother’s education. The higher the mother’s education, the earlier the child’s myopia occurs. Many “double high” families have forced their children to read, read, learn painting, practice piano and calligraphy since they were two or three years old. As a result, many children are short-sighted before entering school, which needs to be paid attention to. Therefore, the family eye care program should not only focus on parents’ supervision of their children, but also parents’ self-supervision.