The school started immediately, it would be too late to do it again!IntersectionIntersection

The children will return to school immediately. For those children with hidden dangers, there is something to forget, that is -optometry.

This is because children-especially low-grade children usually need to perform "slow-docal" when testing, and it takes about 2-3 weeks to fully recover. If it is not done earlier, it still affects the class.

So why do children check myopia? What are the good methods to prevent myopia? Let's talk about today.

"Aperture" and "lens" in the eyes

Let's briefly introduce the eyeball structure in order to make it clear what is the pupil.

There are two components in our eyeballs that are similar to the parts in the camera lens. One is the iris, which is the dark eye kernels that we usually call them. There is a small hole in the center, which is the pupil. When the light is strong, the pupils will be smaller, and less light is passed; the weaker pupils are larger, so that the sufficient light enters the eyes, so that the eyes are comfortable to see the darkness.

Asians' iris color is mostly brown. Gallery copyright picture, not authorized reprint

The other is a crystal, which is the most important "lens" in our eyes. However, when the camera is focusing, it relies on changing the distance between the lens group. The adjustment of the shape muscle to change the protrusion of the crystal body, thereby changing the refractive power of the crystal body to achieve focusing; in this way, the internal imaging of the eyes is exactly the retina, so that the eyes are clear and close.

The upper is normal vision, and below is myopia. Image source: Lasercollection

In most cases, in most cases, because the distance from the eyeballs becomes longer, the eye ciliary muscles are adjusted, and the imaging is in front of the retina. This is the case, which is myopia, and you must consider correction.

Why do children spend their pupils?

The so -called pupils refer to a common ophthalmic diagnosis method in clinical clinic. The commonly used method is to drip eye drops containing paralysis into the eyes. In this way, the pupil sphincter was paralyzed and relaxed, so the pupils were scattered. After the pupils, the pupils became bigger, and the structure of the bottom of the eyes became easier.

Gallery copyright picture, not authorized reprint

Pupils also have an important role in paralyzing ciliary muscles. When giving the child optometry, the pupil is to paralyze the ciliary muscles so that it can relax it. This is because the ciliary muscles of children are too "vigorous" and often in a contraction state, which will make the lens too convex and lead to the formation of pseudo -myopia.

If the pupil is not scattered during optometry, it is the small pupil test, which may lead to the deviation of the result -the child was in front of face -to -face or mild myopia, and the number of myopia when the small pupils were optical. It will show dizziness, visual fatigue and other discomfort. Pupilist optometry is to remove the pseudo -myopia under the pupil.

Because the child's ciliary muscle contraction has strong ability to adjust the ability, it is necessary to use medicine with a stronger paralysis, such as Atropine to scattered pupils. In this way, the recovery time is relatively long. It takes 2-3 weeks. It is the "slow scatter" we usually say. The pupil becomes larger and the ciliary muscle paralysis will allow more light to enter the eyes and reduce the regulation ability of the crystal body. In this way, the eyes will not be able to bear light, and there are many inconveniences in writing and writing. Therefore, this is why everyone should be reminded to prepare early. The optometry is early to test the optometry to avoid affecting returning to school after school.

Some parents may worry that for a few weeks of Satonus, will "too much medicine" affect the child's health? Caring for children is of course the common sense of people, but this is indeed a bit worried. Because for most children, the pupil test will only bring temporary illness and vague vision. It is safe.

However, parents should also be reminded here that they should go to regular hospitals to do pupils, because the eye pressure rises when the pupils are rising, and regular hospitals can check and evaluate this. Otherwise, if the child's intraocular pressure is not normal, the pupils may bring a certain hidden danger.

Fighting against myopia, you can do these things

The child is really myopia, of course, the pupil, optometry, and correction. But we can also do something to prevent myopia.

首先避免长时间的近距离用眼，孩子学习的地方要保证良好光照，同时教会孩子20-20-20 法，也就是每用眼约20 分钟，就要休息一次，望向20 英尺（约6 May) or farther, last for 20 seconds. This allows children's eyes to relax well to avoid fatigue.

In addition, pay attention to bringing more children's outdoor activities to ensure 2 hours of outdoor activities per day. There are two main benefits to the eyes. One is that outdoor can often overlook, helping to relax the eyes. The other is the outdoor strong light to help the retina secrete dopamine, which can slow down the development of myopia. It should be noted that children's eyes need to be outdoor beautiful sunshine, but they do not require ultraviolet rays that can hurt the eyes. Therefore, they can prepare shading caps for children to avoid the child's eyes.

Gallery copyright picture, not authorized reprint

In the end, it is very important that it is best to take the child regularly from a young age to the ophthalmology inspection, and understand the children's hyperopia reserves and myopia development from an early age. This can be responded earlier.For children who are already myopia, the methods that prove that the progress of myopia can be effectively delayed: OK mirrors, low concentration Atto, and myopia separation mirrors. For this content, this article will not be introduced. You can refer to related popular science articles.

Author: Ding Yan

Review: Deputy Chief Physician at Xiamen Ophthalmology Center Affiliated to Xiamen University

What else do you are interested in school content?

Welcome to leave a message to tell us

- END -