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How do you find out if your child has vision problems?

Posting time:2022-10-06 00:59:38

How do you find out if your child has vision problems?

This article has a total of 2620 words, and the estimated reading time is 7 minutes. Please read it patiently. When we are born, our eyes are still semi-finished products, which belong to "congenital hypoplasia" and need to be continuously improved by "acquired development". At birth, the eyes are in a state of hyperopia. With growth and development, the eyes gradually increase from small to large, and the diopter of the eyes gradually tends to be emmetropia (a state of neither myopia nor hyperopia). This process is called "emmetropization". In general, children's vision develops gradually and is not fully stabilized until about 12 years of age. Usually the best cure period for children's vision problems is before the age of 6. If some vision problems miss the best treatment period, the probability of cure in the future will be greatly reduced. However, due to the relatively young age of the child, the low cognitive level, and the lack of expression ability, the detection of vision problems becomes more difficult. Is it normal for my child to be 3 years old and have less than 1.0 vision? It is normal, children's vision is gradually developed, generally children over 5 years old can reach 1.0. What should parents do to find out their children's vision problems in time? 1. The calculation formula of children's vision reference From the usual communication in the outpatient clinic, I found that many parents don't know that people's vision can reach 1.2 and 1.0 after birth. , Just like the height of the child is growing, the child's vision also has a process of growth and development. Children of different ages have different vision standards. Let me tell you a simple formula, if it is a child under 6 years old, the age of one year * 0.2, the result is the child's reference vision. For example, if your child is 3 years old, his reference vision is 3*0.2, which is 0.6 vision. Therefore, we should not use adult standards to ask children, and do not easily judge children as myopic. Warm reminder: Especially the age group of 3 to 5 years old is a sensitive period for children's visual development. In this age group, the visual function of children's eyes is gradually improving, and in the general trend, myopia is getting younger and younger. As a parent, we should pay attention to and pay attention to the changes in children's vision in this age group. If the child is myopic and amblyopia, it must be treated in the sensitive period of vision at the age of 3 to 5 years. 2. Daily Observation How to find the signs of children's vision problems? For parents, the most difficult thing to judge in daily life is the mild myopia of the child. The child is only 50 or 100 degrees in the mild myopia stage, especially when there are just signs of myopia. At this level, as a parent, if you do not master some skills method, it is difficult to find abnormalities in children's eyes. Below I will talk about the most common situations: 1. Watching TV too close
  • Children before the age of 3 have low vision standards. So, have to look closely, this is not a sign of myopia. Of course, it is recommended not to let children get too much exposure to TV during this period.
  • Children between the ages of 3 and 4 have a standard vision of 0.6 to 0.8. In theory, they can watch TV at a normal distance like adults (generally, the best viewing distance for TVs is 3 to 4 times the diagonal length of the screen). If the child likes to run forward while watching TV, and it is a regular movement, it must be very close. For example, children can sit still and not move if they are seen at a distance of less than 1m. At this time, you have to pay special attention. In this case, the possibility of myopia or astigmatism should be suspected.
2. The phenomenon of squinting is easy to observe, that is, when children are watching TV or reading picture books, whether they are looking near or far, they will habitually and subconsciously narrow their eyes. This action means that the child may have more than 100 degrees of astigmatism and more than 200 degrees of myopia. Please pay attention! It must be that he squints frequently regardless of whether he is looking near or far. If it is only an occasional movement, don't worry too much. 3. It is more difficult to judge by tilting your head to look at things. It is to compare the difference between children's usual viewing and concentration and concentration. Some children usually see things without any abnormality, but when they concentrate on looking at things, they will tilt their heads to one side. For example, when a child is playing a puzzle or a toy, when he is doing finer movements in his hand, he needs to keep his eyes very close to see clearly, and the child will tilt his head to look. In this case, there are two possibilities, one is myopia astigmatism, and the other is myopia accompanied by strabismus. Tilt the head for a long time can have a very serious impact on the growth and development of the child, such as deformity of the spine, cheeks, and teeth. Even after the child is older, wearing glasses or having surgery, the facial and spinal deformities cannot be changed. 4. Rubbing eyes when looking at things Some children will rub their eyes with their hands when they stare at something for a long time. In most children, vision in both eyes is the same. But some children have good vision in one eye and poor vision in the other. Some even have a big difference in vision between the two eyes, such as 100 degrees in one eye and 500 or even 1000 degrees in the other. This situation is what we often call anisometropia. In children with anisometropia, the two eyes with large and small degrees are always fighting, and they will produce a difference. The brain center cannot fuse the images of the two eyes together, and the child will not only suffer from visual fatigue. I feel that there will be severe amblyopia. At this time, the child will rub the poor eyesight with his hand. Rubbing the eyes, in itself, is a kind of relief for poor eyesight, and it is also an action to overcome visual disturbances. The anisometropia is very concealed, because one eye has normal vision, so it is not easy to be discovered by parents, and it is easy to be ignored by parents. Many children often rub their eyes. If you find that your child often rubs one eye with your hands, you must pay attention to this phenomenon and take your child to the hospital for vision screening. 5. When I see the sun outdoors, I like to close one eye. When a child goes outdoors and sees strong sunlight, his eyes will narrow at the same time, which is a normal reaction. But if the child squints only one eye, you need to pay attention. Squinting one eye outdoors is most likely to suffer from the following three eye diseases.
  • strabismus;
  • Severe myopia in one eye or severe farsightedness in one eye, because the child cannot see both eyes at the same time, resulting in double vision. One eye overcomes interference;
  • possible to have both strabismus and myopia.
Therefore, in daily life, parents should keep in mind the five manifestations we mentioned above, pay more attention and observe more. If symptoms appear, take your child to the hospital for a checkup. 3. Take the child for regular eye examinations, and how to know the child's vision by grasping the changes in the child's vision?
  • Use an eye chart. After the child reaches the age of 3, he will recognize the gap in the vision chart, commonly known as "comparison vision", and children with normal vision can compare to 1.0.
  • Currently, the commonly used eye charts are the E and C charts, and the C word chart is commonly used in non-English-speaking countries.
  • How to teach a 3-year-old to read an eye chart?
  • There is a simple method, first use a marker to draw a big C along the edge of the rice bowl, then draw a small ant or small turtle inside the big C, and ask the child what the ant or turtle wants. Climb out from where? After playing like this for a while, ask the child in another direction, then slowly take the C-shaped card farther away, gradually pull the distance away, and practice by playing games, and the child will soon be better than the gap.
  • It is recommended to have a vision check every six months starting at the age of 3. Children's vision development period is from 0 to 7 years old, which is also the golden treatment period for children's eye diseases. Timely prevention of signs, problems and timely treatment can avoid the occurrence of serious eye diseases to the greatest extent. If you miss this stage, etc. Once optic nerve development is complete, subsequent treatment becomes more difficult.
To sum up, through daily observation, we can find the signs of children's vision problems in time, and take children to do vision examinations regularly. Especially in the early stage of pseudo-myopia, with timely intervention, it is possible to restore normal vision.

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