There are many kinds of glasses, which are divided into two parts: lenses and frames. There are many kinds of materials for lenses and frames. There used to be glass lenses, existing resin lenses, coated lenses and so on. There are titanium frames and so on. Doctors don't know much about materials. Usually, the prices are cheap and expensive, some are several hundred yuan, some are thousands of yuan, and some progressive multifocal lenses are very expensive, which may cost several thousand yuan.
Everyone has different requirements. When choosing lenses according to personal conditions, the most important thing is lenses. If economic conditions permit, you can choose a frame with better material, but the quality of the lens must meet the standard.
Extended data:
Precautions:
If you find that your child's vision is declining and you can't see clearly in the distance, you must take your child to an ophthalmologist for a detailed eye examination.
In the absence of any problems in eye examination, give the child medical astigmatism, determine whether the child is hyperopia or myopia, find the right degree, and then give the child glasses.
For children who wear glasses for the first time, it is recommended to use slow powder for mydriasis optometry. Because drugs such as atropine can completely relax the child's ciliary muscles and find out the most accurate degree of ametropia. Be sure to give your child a very detailed examination and glasses to get good clinical results.
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