Abstract: we all believe that noise will have an impact on hearing and psychology, but we never expected that noise will also affect vision, especially for children who are still in the stage of eye development., We know, Strong light (Yuba, flash, sunlight), bright sleep, TV (tablet computers, mobile phones), constant sleeping posture, eye hygiene, etc. will cause children’s vision problems. The development of vision in children is not mature. In addition to avoiding these vision threats common in daily life, parents should not underestimate those unknown vision killers. Killer 1: noise, we all believe that noise will have an impact on hearing and psychology But unexpectedly, noise will also affect vision, especially for children who are still in the stage of eye development., As the saying goes, the seven orifices are connected, and there is a very subtle relationship between the ear and the eye. When the sound source acts on the ear, the visual nerve will be agitated, resulting in the weakening of vision. Frankly, noise will reduce the eye’s sensitivity to light and affect the child’s visual adjustment ability and eye movement speed., Knowledge supplement: the experiment shows that when the noise intensity reaches 90 dB, the sensitivity of human visual cells decreases and the reaction time of recognizing weak light prolongs; When the noise reaches 95 dB, 40% of people have dilated pupils and blurred vision; When the noise reaches 115 dB, the adaptation of most people’s eyeballs to brightness is weakened to varying degrees. At the same time, noise will also make color vision and visual field abnormal. The survey found that noise reduced the vision of red, blue and white by 80%., According to the measurement, the noise generated by TV and tape recorder can reach 60-80 dB, that of washing machine is 40-70 dB, that of refrigerator is 34-50 dB, and that of speaking loudly can also reach 60 dB.,
we know, Strong light (Yuba, flash, sunlight), bright sleep, TV (tablet, mobile phone), constant sleeping position, eye hygiene, etc. will cause children’s vision problems. The development of vision in children is not mature. In addition to avoiding these vision threats common in daily life, parents can not underestimate those unknown vision killers.
Killer 1: noise
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we all think that noise will have an impact on hearing and psychology, but we never expected that noise will also affect vision, especially for children who are still in the stage of eye development.
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as the saying goes, the seven orifices are connected, and there is a very subtle relationship between the ear and the eye. When the sound source acts on the ear, the visual nerve will be agitated, resulting in the weakening of vision. Frankly, noise will reduce the sensitivity of the eyes to light and affect the children’s visual adjustment ability and eye movement speed.
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knowledge supplement:
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tests show that when the noise intensity reaches 90 dB, the sensitivity of human visual cells decreases and the reaction time of recognizing weak light prolongs; When the noise reaches 95 dB, 40% of people have dilated pupils and blurred vision; When the noise reaches 115 dB, the adaptation of most people’s eyeballs to brightness is weakened to varying degrees. At the same time, noise will also make color vision and visual field abnormal. The survey found that noise reduced the vision of red, blue and white by 80%.
according to measurement, the noise generated by TV and tape recorder can reach 60-80 dB, that of washing machine is 40-70 dB, that of refrigerator is 34-50 dB, and that of speaking loudly can also reach 60 dB.
countermeasures:
external noise pollution can not be avoided, but the less harm to children in a small home, the better. What we can do is to reduce the impact of home appliances on children’s vision.
when watching TV, try to adjust the volume to the lowest; When washing clothes, close the door of the toilet; When choosing new household appliances, in addition to being beautiful and practical, noise is also one of the judges; When the kitchen is not in use, the door is closed; When family members talk, try to ease their tone.
Killer 2: sweets
most children like sweets. Ice cream, chocolate, cake and candy are very attractive to children. We are most worried that sweets will lead to dental caries, but we don’t know that this is also one of the culprits of children’s vision loss.
knowledge supplement:
myopia has many causes, and the imbalance of trace elements is also one of the causes of myopia. Excessive consumption of foods with high sugar content will reduce the content of trace element chromium in the body. Lack of chromium will reduce the tissue elasticity of fundus and lengthen the ocular axis.
in addition, too much sugar will reduce the calcium content. Calcium deficiency will reduce the elasticity of the developing outer sclera of the eyeball, and the eyeball is easier to be elongated, resulting in myopia.
according to the determination of relevant foreign experts, the sugar in sweets needs a lot of vitamin B1 when metabolized in the human body. If the sugar intake in the body is too much, vitamin B1 will be relatively insufficient, which will affect the normal supply of vitamin B1 required for optic nerve development and bury the hidden danger of myopia.
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fight against tricks:
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are the secret of making children’s heart windows clear and bright. In addition to less touching sweets, supplement foods rich in vitamin B1, such as dairy products, animal liver and kidney, egg yolk, carrots, mushrooms, laver, celery, oranges, oranges and so on.
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lutein can be called “invisible Sunglasses”. Kiwi fruit has the highest lutein content, followed by corn and egg yolk. The third killer of
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: learning the piano early
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parents have worked hard for their children’s wide interests. Learning the piano has almost become the standard configuration of children’s interest classes now. Some even send their children to interest classes from the age of 4, and do not mention the disadvantages of learning the piano early. Unexpectedly, it has also become one of children’s eyesight killers.
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knowledge supplement:
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when learning piano, children have to learn and read music scores, and pay attention to fingering and music rules. Play the piano while looking at the score. Sit for at least one hour. The words of the score are small and close to your eyes. You have to look down at the keyboard from time to time, switch frequently, and constantly adjust the eye ciliary muscle to focus on the focus, which can easily lead to the child’s eyesight fatigueLao. In addition, practicing calligraphy and painting for a long time, like practicing the piano, can also lead to visual fatigue.
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are good against each other:
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do not learn piano under the age of 5; Copy and enlarge the score to matt paper, light yellow or light green; Put a non frequency flashing eye protection lamp for children on the piano; Rest for more than ten minutes every 45 minutes, cooperate with eye exercises or overlook and close your eyes; Take children to do more outdoor sports. The fourth killer of
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: psychological factors
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here refer to tension and depression. Children growing up in an disharmonious family environment will not only affect their character and self-confidence, but also affect their eyesight.
knowledge supplement:
American ophthalmologists have found that discord between husband and wife, tension between parents and children, and parental abuse of children can cause visual impairment in children, which is mainly seen in preschool children and often ignored.
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counter tactics:
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don’t think that children are small and don’t understand anything. They are the most observant diplomats. Parents should try their best to restrain their emotions in front of their children and don’t let their children feel uneasy; Interact with children more, pay attention to children’s mental health, overcome bad mentality and keep children in a positive and good mood.