What is 400 degrees of myopia?

Myopia is an eye problem that everyone knows. It mainly refers to the fact that when people look at things, they can only see things that are very close to them but cannot see things that are far away, so it is called myopia. Myopia can be divided into different degrees according to the degree of blurriness of objects. Some people have a myopia of over 400, but they don’t know what their myopia rating is on the eye chart. Let me introduce it to you today.

When the accommodation is relaxed, parallel light rays focus in front of the retina after passing through the eye's refractive system, which is called myopia. Because this kind of eyes can only see near but not far. Since myopia is more common among modern teenagers, the vision requirements for recruitment have also changed. Myopia of 400 degrees can be corrected through frame glasses and surgery. Whether one can serve in the army depends on the requirements of the military branch.

There is no direct relationship between the degree of refractive error and myopia and the degree of vision. People with 400 degrees of myopia can see 0.3 or 0.5. The ciliary capacity of the eye is very strong, and you can see 1-2 more lines by squinting slightly, so there is no need to worry about how many degrees of refractive error there is, because the accommodation ability of people's eyes is different. To get the accurate degree, you need to go to the ophthalmology department of a regular hospital, have your pupils dilated for refraction, and determine the actual degree before wearing glasses. Pay attention to eye hygiene, reduce exposure to electronic products, increase outdoor activities, and get enough rest and don't stay up late. You can massage and apply hot compress locally, look at more green plants, and do eye exercises regularly.

The new eye chart shows a visual acuity of 4.4 for myopia of 400 degrees, while the old eye chart shows a visual acuity of 0.25, which is considered moderate myopia. Normal vision New eye chart: 5.0 and above Old eye chart: 1.0 and above Children under 18 years old, if they have moderate myopia, should take medication in time. It is recommended to take Lejing Vision Nutrients, two packs a day. If you take it for a period of time, the myopia will be reduced and the vision will be improved. In addition, you should develop good eye habits:

1. When studying or working at close range under appropriate light brightness, if the light is poor (too bright/too dark), the eyes will over-adjust, which will affect vision over time, so avoid these situations. If you are not sure about the lighting at home, you may want to use an eye protection light pen for daily monitoring.

2. Correct your eye posture when reading at close range: Sit upright and place the book about 30 cm away from your eyes. When watching TV, the distance between the eyes and the TV should be 5-6 times the diagonal length of the screen.

3. Shorten the time of close eye use when reading books/computer/TV, and take a 10-15 minute break every 45-50 minutes.

4. Actively relax your eyes. First of all, adequate sleep is undoubtedly a good way to relax your eyes. Secondly, doing more outdoor sports/activities can help relax your eyes.