【Love Eye Small Class】Children are short-sighted, what position is better to sit in class?
Eye-catching classroom
Some parents are worried that their children can't see clearly or deepen their degrees after their children have myopia, so they specially take care of the homeroom teacher and adjust their children's seats to the front row so that their children's eyes can relax and they can see more clearly during class. But is this really scientific?
Myopia is in the relaxed state of the eye, the parallel light is focused in front of the retina after passing through the refractive system of the eyeball, and a clear image cannot be formed on the retina, only a scattered and blurred aperture is presented, so it is not clear to see distant objects. We talk about myopia, seeing near clearly, seeing far away is not clear; the dividing line between near and far here is generally 5m. Even if a person does not watch TV and does not play with mobile phones, the range of home-based seeing is limited, and a small range, close-up, and long-term use of eyes will produce myopia.
Therefore, the closer the object the eye sees, the higher the degree of contraction, and the more tired the eye is. Therefore, myopic students should not sit in the front row, sitting at a distance of 5 meters to 6 meters from the blackboard is the best position.
Myopia is actually directly related to excessive use of the eyes. Children's eyeballs are not well developed, the smaller the child, the more can not stand the close use of the eyes, for a long time excessive use of the eyes, will increase the burden of the eyeballs. For every 1 mm increase in eye length, the degree of myopia increases by 300 degrees. When children can't read clearly in class, they need to check whether they are "pseudo-myopia". If necessary, you should also wear appropriate glasses, otherwise the child will unconsciously squint his eyes in order to see things clearly, and the ciliary muscles of the eyes will be excessively contracted, resulting in an increase in the degree of myopia; pay attention to eye hygiene (control the distance and time of reading/mobile phone/TV, do more outdoor exercise, do not rub your eyes), which will delay the development of myopia.
Because sitting in the front row, the words written by the teacher at this distance in time is myopia is also enough to see clearly, so many children often have myopia, it is not easy to be found, parents often to see whether the blackboard can be seen to judge whether the child has vision abnormalities, so many children sitting in the back row of myopia mostly because they can not see the blackboard can be found as soon as possible, get timely correction and prevention and control, and many children sitting in the front row to check the degree of vision is often not shallow, and even many children have been myopia for a long time, It wasn't until we went to the group screening that parents and teachers realized the problem was serious.
So for the seat, in addition to the height and performance reference standards, it is best to have a reasonable vision consideration, rather than thinking that the front row is good, in addition to the difficulty of finding vision problems, many places the children in the front row are called human flesh vacuum cleaners, long-term damage from blackboard chalk dust. These problems may be covered up by learning and achievements, and have not been taken seriously.
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