Which kind of myopia lens is good

summary

With the improvement of living standards, more and more people are short-sighted, and more and more myopia lenses are available. It makes people feel dazzled, and they don't know which one is good. Let's discuss it together.

Which kind of myopia lens is good

First, glass lenses have stable refractive index, good wear resistance and stable optical properties, but they are relatively heavy and easy to crack. Resin lens (CR-39): light, safe, high transmittance, not easy to crack, but the surface is easy to wear. So many people will choose resin lenses.

Second, because the crystal can't block the harmful light, it's basically not used now. PC film is the safest lens at present, but because of its price factor, it is not widely promoted, and its market share is not very high.

Third, the current myopia lens is generally based on resin sheet, but it mainly needs careful maintenance and care. Otherwise, once the resin sheet is scratched, there is no way to repair it.

matters needing attention

Myopia is to wear glasses in time, the degree of the eye must be accurate, but also choose their own lenses, otherwise it will aggravate the degree of myopia.