Are optometrists able to tell if sunglasses have UV protection?

[Schuylkill]

I am not sure the sunglasses I bought in the high street have UV protection,there is no brand or sticker.If I take these to an optometrist , can they tell whether or not they have UV protection?

[Hepler]

You should take your glasses to optometrists, they would be able to tell you if your sunglasses have UV protection.

[Heppner]

Yes. The optometrists can tell whether the sunglasses have UV protection or not. You just take them to any optometrist and he will check it and let you know.

[Herald]

I am not sure if the optometrist can tell whether the sunglasses have UV protection. But I have heard that there is a machine to test how much UV rays can the sunglasses block.You can have a ask in the optical store.