Abstract: with the popularity of television and computers, the number of people using video terminals for work, study and entertainment has increased sharply. A large number of documents and materials such as Mutti show that although watching television or using video terminals (VDTs) at work are more prone to visual fatigue or accommodation impairment than other civilian personnel, it is not found that the above two can cause myopia or aggravate its progress except for other confounding factors., When the eye is adjusted and relaxed, the parallel light passes through the ocular refractive system and focuses on the retina, which is called myopia. Myopia has increasingly become the focus of research, and its exact pathogenesis is not clear. Only epidemiological investigation shows that it may be related to a variety of environmental factors, so it is particularly important to prevent and reduce its occurrence., Lifestyle leads to myopia. At present, the research on myopia mostly focuses on genetic genes and clinical correction, but there is little research on the role of daily lifestyle in the pathogenesis of myopia from the perspective of the general population at home and abroad. This paper briefly summarizes its relationship with people’s lifestyle., 1 close work, wensor et al. Found that the prevalence of myopia is related to some close work occupations, such as university teachers (or value is 1.63), secretaries (or value is 1.89), etc. Simensen et al. [4] followed up the refractive changes of women textile test workers with normal refraction (working distance of 30cm) and controls. It was found that 90% of women workers were myopic (average – 2.25d) and the ocular axis length was 24. There was no difference in corneal curvature, anterior chamber depth and lens thickness between the control group and the control group. This is because teenagers’ eyeballs are in the stage of growth and development, with strong regulation ability and large extension of ball wall. The ciliary muscle and the extraocular muscle (mainly the medial rectus muscle) are often in a high tension state after staring at the near object for a long time, and the curvature of the lens is significantly increased. At the same time, under the long-term mechanical compression of the extraocular muscle, the scleral tissue gradually extends the ball wall, lengthens the eye axis, and gradually deepens the degree of myopia [5,6]. Close work enhances eye adjustment and makes retinal imaging unclear. Excessive use of adjustment gradually lengthens the eye axis, resulting in myopia. The extension of the posterior part of the eyeball is only 1 / 6mm, which can increase myopia by 0. 5 diopters., 2 television and video terminals (VDTs). With the popularity of television and computers, the number of people using video terminals for work, study and entertainment has increased sharply. A large number of documents and materials such as Mutti show that although watching television or using video terminals (VDTs) at work are more prone to visual fatigue or adjustment disorders than other civilian personnel, However, in addition to other confounding factors, it was not found that the above two can cause myopia or aggravate its progression. However, young students watching TV, computers or game consoles for a long time can easily cause eye fatigue and eventually lead to myopia. Ou min and other studies have shown that the progression rate of myopia among young students who watch TV or play games for more than 1 hour a day is 80. 38%, the two were significantly correlated., When the
eye is in a relaxed state, the parallel light passes through the ocular refractive system and focuses on the retina, which is called myopia. Myopia has increasingly become the focus of research, and its exact pathogenesis is not clear. Only epidemiological investigation shows that it may be related to a variety of environmental factors, so it is particularly important to prevent and reduce its occurrence.
lifestyle leads to myopia
at present, the research on myopia mostly focuses on genetic genes and clinical correction, but there is little research on the role of daily life style in the pathogenesis of myopia from the perspective of the general population at home and abroad. This paper briefly summarizes its relationship with people’s lifestyle.
1 close work
wensor et al. Found that the prevalence of myopia is related to some close work occupations, such as university teachers (or value 1.63), secretaries (or value 1.89), etc. Simensen et al. [4] followed up the refractive changes of women textile test workers with normal refraction (working distance of 30cm) and controls. It was found that 90% of women workers were myopic (average – 2.25d) and the ocular axis length was 24. There was no difference in corneal curvature, anterior chamber depth and lens thickness between the control group and the control group. This is because teenagers’ eyeballs are in the stage of growth and development, with strong regulation ability and large extension of ball wall. The ciliary muscle and the extraocular muscle (mainly the medial rectus muscle) are often in a high tension state after staring at the near object for a long time, and the curvature of the lens is significantly increased. At the same time, under the long-term mechanical compression of the extraocular muscle, the scleral tissue gradually extends the ball wall, lengthens the eye axis, and gradually deepens the degree of myopia [5,6]. Close work enhances eye adjustment and makes retinal imaging unclear. Excessive use of adjustment gradually lengthens the eye axis, resulting in myopia. The extension of the posterior part of the eyeball is only 1 / 6mm, which can increase myopia by 0. 5 diopters.
2 television and video terminals (VDTs)
with the popularity of television and computers, the number of people using video terminals for work, study and entertainment has increased sharply. A large number of documents such as Mutti show that watching television or using video terminals (VDTs) at work are more prone to visual fatigue or adjustment disorders than other civilian personnel, However, in addition to other confounding factors, it was not found that the above two can cause myopia or aggravate its progression. However, young students watching TV, computers or game consoles for a long time can easily cause eye fatigue and eventually lead to myopia. Ou min and other studies have shown that the progression rate of myopia among young students who watch TV or play games for more than 1 hour a day is 80. 38%, the two were significantly correlated.
3 continuous long-time reading
Wallman et al proposed that long-time close reading is a special form deprivation. It is considered that during close operation, the written illumination is worse than that outside the home, the books are mostly in black and white, most retinal cells have less response and are in an inhibitory state, and only macular foveal cells are sensitive. That is, during close operation, only the macular fovea of the retina can obtain sufficient visual stimulation, while most other parts of the retina can not obtain clear images, lack of sufficient stimulation and reduce cell activity. Over time, the ocular axis will grow, resulting in myopia. Peng Guangyuan and others found that the prevalence of myopia among young students is increasing from primary school to junior middle school to senior high school, mainly due to the aggravation of learning tasks and the extension of learning time, especially the extension of close operation timeSpecial form deprivation.
4 there are too few outdoor sports activities. Living in a narrow space is not conducive to visual development. Animal experiments have proved that small animals living in a narrow environment are prone to myopia. In addition, parsinen et al. Proved that people with myopia participated in less sports activities in adolescence, but there was no significant difference in this regard in adulthood. The specific reason is not clear. Seet and other research results also show that too little outdoor activity is associated with myopia.
5 night illumination
Quinn et al. Found that night light on sleep is closely related to the occurrence of myopia. Animal experiments show that continuous light stimulation can lengthen the eyeball, and its mechanism is not clear. However, saw [18] found that the relevant research results were different and did not draw this conclusion. Whether night continuous light stimulation can cause myopia is still under debate, but it is a consensus that reading in dim light is easy to cause myopia.
6 lack of sleep
recently, rose and others found that the formation of low-grade myopia is not significantly related to heredity, but closely related to sleep time. Studies have shown that the imbalance of the function of local sympathetic nerve and parasympathetic nerve is the pathological basis of myopia. Due to lack of sleep, it can cause systemic autonomic nerve dysfunction, and systemic autonomic nerve dysfunction will inevitably affect the function of local sympathetic nerve and parasympathetic nerve of the eye, resulting in disorder of ciliary muscle regulation and the formation of myopia.
in recent years, although experts have repeatedly called for attention to the protection of teenagers’ vision, the prevalence of myopia in China is still increasing year by year, which is really worrying. At present, there are few studies on the relationship between people’s lifestyle and myopia at home and abroad. Further discussion and education should be carried out to make people know more about the problems related to myopia, so that it is possible to consciously take measures to better prevent myopia.