1. Look for the UV400 logo when choosing sunglasses.
Because the UV wavelength is below 400 nm, this mark indicates that the lens is resistant to UV rays. When buying sunglasses, don't be greedy, it is best to go to a professional eye hospital to buy.
2. Be sure to choose a pair of glasses that suits you.
Never neglect the quality of the lens for aesthetic reasons. In general, summer, it is best to choose brown, brown and green sunglasses.
3. When you buy glasses, you can put sunglasses in front of your eyes.
Observe the distant objects through the lens to see if there is any deformation. At the same time, you should also pay attention to the color of red, yellow and green after wearing sunglasses.