Collection of knowledge about glasses (1)

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1. Is it harmful to myopia without glasses?
Not wearing glasses for myopia is just like not getting an injection or taking medicine if you are sick, and your condition will get worse and your degree will rise.
Wearing glasses can not only improve and protect eyesight, but also facilitate study and life, and it will not appear again because you can’t recognize people.
People mistakenly believe that there is no top hat; serious refractive errors may cause strabismus and amblyopia if they are not fitted in time; more harm than good.
2. How much myopia is better to wear glasses? Do I also need to wear glasses for minor myopia?
People with myopia of 0.50 degrees or more can wear glasses. We advocate that when looking far away is the master, wear glasses for far away, and looking near is
Wearing near-use glasses at the main time can not only protect the eyes, but also prevent or slow down the occurrence and development of myopia. Just like a lady puts on makeup before going out, and removes makeup and maintains it after returning home, different glasses are used for near and far. It can give our eyes more care and protection.
3. What is astigmatism?

It means that objects that are near and far are blurred, and objects that are shining or reflecting in the distance have an aperture around them. In severe cases, even

There are double images, deformed vision conditions. At the same time, we can use the astigmatism table to explain: in fact, every item on the picture
The thickness of the line is the same, you will feel different, it means you have astigmatism; astigmatism is ours
A certain asymmetry of the refractive system of the eye.
4. How is astigmatism formed?
There are many reasons for astigmatism, mainly genetic and physiological development before 3 years old. The eyeballs grow fast and the eyelids grow slowly.
It is caused by uneven growth and development of the membrane. Even when we close our eyes while sleeping, the uneven pressure of the eyelids on the cornea can cause astigmatism.
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