Do inexpensive sunglasses block UV rays

In the burning summer, inexpensive UV sunglasses are very common to see on the streets as many people would like to save their eyes from direct strong sun lights at low costs. However, many people doubt whether these so-called UV sunglasses at low prices can really achieve the effect of blocking UV rays.


Theoretically speaking, when a pair of sunglasses can reach the standard of UV400, it can reach one hundred percent in resisting UV. As a result, it is essential to find out whether there is a UV400 mark on the sunglasses. You’d better throw away sunglasses without functions of blocking UV rays as they will harm your eyes rather than protecting your eyes.


Many people buy cheap sunglasses with dark lenses because they believe this kind of lenses can block UV better. Especially girls prefer to buy cheap so-called UV sunglasses for women with dark red or orange lenses. Nevertheless, the fact is that dark sunglasses without anti-UV function hurt eyes most. The reason is that the pupil of our eyes will magnify in dark environment and then more UV rays will come into our eyes. It’s researched that our eyes are more easily to get cataract after being exposed to UV for a long time. So, it is better to choose grey, green or tawny sunglasses if you want to purchase and buy cheap sunglasses without hurting your eyes.

Generally speaking, the price of a pair of sunglasses depends on the material and workmanship of both the lenses and the frame. Bad lenses hurt your eyes and bad frames are harmful to your skin and the bridge of your nose. If you want to buy good UV sunglasses, you had better go to a standard optical glasses shop and buy a pair of sunglasses with certification.

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