What causes a sudden decrease in children's vision?

It stands to reason that if children develop good living habits, do not often watch cartoons, or play computers or tablets, their eyesight should not be affected much. However, many parents have found that their children's eyesight has suddenly deteriorated significantly, and they always complain that they can't see clearly. The sudden change makes parents very worried and they are very concerned about the possible reasons. So, what causes a sudden deterioration in children's vision? Let's take a closer look below.

If you check the visual function and your child's vision does not reach the standard vision of 1.0 when testing the distance vision chart at a distance of 5 meters, parents should take the child to the hospital's ophthalmology department in time, preferably a specialized pediatric ophthalmology clinic for a clinical pediatric ophthalmology specialty examination. The child's poor distance vision may be the onset of early myopia or hyperopia.

What is certain is that the child may have refractive errors, including the possibility of amblyopia, and even fundus disease, so he needs to go to the hospital's ophthalmology department for a specific examination. A child's vision loss is not necessarily caused by myopia. Many factors need to be considered. The so-called pseudomyopia refers to the early stage of a child's myopia, that is, ciliary muscle spasm myopia or high hyperopia, which makes it difficult to see far. This concept is vague but is still in use. Moderate to severe hyperopia will result in poor vision both near and far. If the child has congenital defects or acquired fundus diseases, or has problems with the anterior segment of the eye (cornea, lens), or even problems with the refractive medium in the eyeball (intraocular vitreous body), it will cause the child's vision to deteriorate.

Simply talking about the refractive issue, when a child has myopia, his distance vision is poor but his near vision is very good. When a child has high hyperopia, his distance vision will be poor but his near vision will also be poor. Or when a child has myopia, his distance vision is poor but his near vision may be good. Of course, the child's eye accommodation function is very strong. When myopia occurs, the distance vision can reach 1.0, but the near vision is also good. This requires taking the child to a professional pediatric ophthalmologist or ophthalmologist to check the refractive state of the child's eyes, correct the child's refractive state, and discover the child's eye problems in a timely manner.

Nowadays, many children have problems with decreased vision. As for why children's vision suddenly decreases, specific examinations are needed to determine. Parents should not worry too much. The key is to find out the child's condition in time, go to a regular ophthalmology hospital for relevant examinations, and solve it as soon as possible to avoid more serious effects on the child's vision.