With the development of the times, eyeglasses online cheap matching has gradually become a trendy mode. However, some issues with online glass matching may not be well understood by many.

It may seem easy to pair a pair of glasses, but, to create a comfortable and qualified pair of glasses requires a very professional choice, mainly reflected in the selection of lenses.

If you are planning to get glasses online, how should you choose a pair of lenses that are suitable for your glasses prescription? If you want to choose the right lens for yourself, you should first understand the corresponding lens parameters.

For example, what is a refractive index? It reflects the ability of a lens to refract light. Generally speaking, the larger the refractive index value, the thinner and more aesthetically pleasing the lens.

Also, for example, what is anti UV function? It mainly reflects the anti-UV ability of the eyeglasses online cheap lens to block the wavelength of ultraviolet light.

For example, what is curvature design? This is a more professional term, which can be divided into spherical and non-spherical types. Non-spherical lenses have less visual deformation, are easy to adapt to, and are less prone to fatigue. They are thinner and lighter than spherical lenses with the same degree. 

So, after understanding these, let's now introduce some good eyeglass lens brands to everyone. Through the above introduction, I believe everyone will know how to choose the right lenses for themselves when matching glasses online in the future.

In environments with strong sandstorms or dust layers. Do not choose structures and styles that are difficult to clean, such as hollowed-out or crystal-inlaid structures that are prone to dirt accumulation, and surfaces that are prone to wear and tear when painted.