Many kinds of sunglasses family

Summer, the sun's harmful rays issued only easy to burn our eyes,    it is the culprit of senile cataract, choose a qualified sunglasses are very necessary.

Array of sunglasses on the market, how to identify their function and cons? Dr. Shao remind you: Select sunglasses, the most fundamental thing is to be able to protect the safety of the wearer and does not damage vision, reducing light stimulation, visual clarity without distortion, anti-UV,    no distortion of color recognition, accurate traffic signal recognition.

Many kinds of sunglasses family

Colored lenses

Also called "stained lens" is in the lens production process, coupled with some chemical substances, so the lens showing the color, to absorb specific wavelengths of light. This is the most commonly used lens sunglasses type.

Coloring lenses

Its effect is the same color lens,  only made ​​in different ways, it is the color applied to the lens surface, the color is above the deepest, and then gradually down light. And more generally for a degree of sun glasses.