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| Many students at a middle school in Bien Hoa city are nearsighted. Photo: A.Yen |
Dr. Dang Xuan Nguyen, Chairman of the Professional Council of Hanoi - Dong Nai Eye Hospital, said that early signs of myopia are that children often squint to see objects in the distance, often go close to the TV to watch, and tend to bring everything closer to their eyes. If myopia is a little more severe, children will not see clearly at a distance, cannot see clearly on the board, and often have tired and sore eyes. In fact, at Hanoi - Dong Nai Eye Hospital, there are many young children who, when examined, have only 1/10 of their vision and a nearsightedness of 3-4 diopters.
Myopia is caused by a combination of genetic and environmental factors. A child with one parent who is myopic is three times more likely to develop myopia, and the risk increases six times if both parents are myopic. However, many children whose parents have perfectly good vision can still develop myopia.
In addition, when children look too close (within 1 meter) can also contribute to the development of myopia. For example, children sit reading books, doing homework in the wrong posture, bending their eyes close to books, using computers, phones, watching TV at close range.
Research also shows that children who spend too little time outdoors are more likely to be nearsighted. Children should spend an average of 1.5 hours a day participating in any outdoor activities, such as walking and playing sports .
New ophthalmological research in the past 10 years has found that although conventional glasses correct vision, they do not help prevent the progression of myopia, and may even contribute to the progression of myopia. This is because when wearing conventional glasses, the image of all objects is accurately adjusted at the macula, that is, the retinal area in the center of the visual axis, but due to the structure of the converging components being uneven, the peripheral retinal area receives a blurred image due to insufficient converging force, which stimulates the eye to lengthen, causing myopia to increase.
Therefore, the important goal of myopia treatment is to control the elongation of the eyeball axis. Currently, there are a number of methods that have been proven by scientific research such as: Ortho-K method, low-dose Atropine, wearing special lenses with small lenses in the central nearsighted area are highly effective in controlling increasing myopia. In addition, the lifestyle needs to be adjusted accordingly, increasing the time outdoors from 30 minutes to 1 hour/day, reducing the time exposed to electronic devices such as: phones, iPads, computers, televisions.
Peace
Source: https://baodongnai.com.vn/xa-hoi/202504/hoc-sinh-bi-can-thi-gia-tang-4b94295/
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