1, beautiful decoration
2, blocking the eye defects
3, can reduce the burden of eye ciliary muscle under the regulation of light
4, blocking harmful light
4, protect the eyes from harm
5, wearing sunglasses, looks like a face will be thin This theory is made by Olsen sisters, her theory is very simple, beautiful, love thin woman, always "deliberately" let yourself look smaller, more thin, the greater the nose wearing glasses, Will make their face look smaller, thus creating a "face-lift" visual effects.