introduction
Myopia is becoming more and more common in modern society and has a negative impact on students' Xi and life. Myopia is not only a refractive error of the eyes, but also related to students' academic Xi performance, quality of life and future development. According to the World Health Organization, more than 200 million people worldwide currently suffer from myopia, and in China, more than 60% of high school students are myopia, a staggering number. However, it is worrying that myopia is also beginning to appear in the primary school population and is gradually increasing. According to statistics, more than half of primary school students have myopia. So, what causes the prevalence of myopia in primary school students? This article will explore the causes of myopia in primary school students by discussing four bad Xi.
Bad Xi 1: Improper use of eyes
Playing with mobile phones, computers, and tablets for long periods of time causes pressure and fatigue on the eyes, increasing the risk of myopia. When children are addicted to the world of electronic devices, they tend to be sedentary and stare at screens with high brightness and strong radiation, resulting in excessive straining of the eye muscles and prolonged concentration of the eyeballs. This kind of long-distance gaze and improper use of the eyes can easily put the eye muscles in a state of tension, which in turn produces eye fatigue and visual fatigue. Long-term continuation of this bad Xi will lead to an increase in the incidence of myopia in the eyeball, and it will become younger and younger, and may even lead to other eye diseases.
Bad Xi 2: Not paying attention to eye rest
Prolonged continuous eye use without rest can lead to eye fatigue and vision loss, increasing the risk of myopia. In learning Xi and using electronic devices, it is inevitable that you will use your eyes for a long time. During this period, the eye muscles are in a state of tension for a long time, the secretion of tears is reduced, and the corneal surface is not lubricated, which in turn leads to eye fatigue and vision loss. In addition, when the eyes are concentrated at a distance for a long time, the use of muscles in the horizontal direction of the eyes is relatively concentrated, and the horizontal eye is more than the vertical eye, which is a more tiring work mode for the adaptability of the eye. This Xi of using the eyes continuously for a long time without rest will increase the excessive focus force of the eyeball refraction, which eventually leads to the occurrence of myopia problems.
Bad Xi 3: Failure to maintain correct eye posture
Poor eye posture, such as looking down for a long time and incorrect posture, will cause unnecessary pressure and burden on the eyes, and increase the risk of myopia. In the classroom, many children develop bad eye posture Xi such as looking down at books, looking down at mobile phones, and bowing their heads to write homework. This posture of using the eyes will limit our vision, increase the burden on the eye muscles, and shrink the range of motion of the eyeball, which will lead to eye fatigue, decreased vision, and abnormal growth of the refractive power of the eyeball, and eventually lead to myopia problems.
Bad Xi 4: Incorrect writing posture
Incorrect writing posture can adversely affect eye development and vision, which in turn increases the risk of myopia. In the process of writing homework, many children develop incorrect writing postures, such as tilting their heads, bowing their heads to write, and improper posture. This poor writing posture makes the experiential perception of the longitudinal space of the eye insufficient, which directly affects the normal movement of the eye and the normal development of vision. At the same time, incorrect writing posture can also cause excessive strain in the eyes, leading to fatigue and excessive tension in the eye muscles, which promotes the occurrence of myopia.
summary
By changing poor eye Xi, the incidence of myopia can be reduced and students' eye health can be protected. Parents, teachers and students themselves should work together to strengthen education on the proper use of eyes and cultivate good eye Xi. For example, it is necessary to relax and rest the eyes every once in a while, reduce the time spent with the eyes, do moderate eye exercises and health exercises, adjust students' recess activities, especially stay away from electronic devices, and perform eye exercises regularly. These measures will help reduce the risk of myopia in students and lay a strong foundation for their future development and health.
All in all, these four bad Xi play an important role behind the myopia problem of primary school students. By recognizing the harm of these bad Xi habits to eye health, we should actively take measures to guide children to develop good eye Xi habits and avoid the occurrence of myopia. Only by paying attention to eye health can we create better conditions for students' Xi and life.