How can you tell if sunglasses have UV protection?

[Robeson]

Poor quality glasses cause conjunctivitis, headache, falls, burns and loss of vision.?Now, if I buy glasses who claim protection, IS THERE ANY WAY TO VERIFY THAT DOMESTIC SO EFFECTIVELY?

[Robesonia]

Hi In some optical apparatus, have some measure ultraviolet radiation.?A sure way is to buy into a prestigious optical and ask that you put on your bill Uv filter 400

[Robin]

Well, I believe your idea is quite correct, because it is true that poor quality sunglasses would cause some slight problems, and make you feel quite bad. Anyway, when you try to buy a pair of good sunglasses in the optical store, you should consult the salesman, they know what you need and what type has UV protection, also you could know that info through looking into the product certificate, you can see some detailed information on the certificate. But generally speaking, all good sunglasses have UV protection.