Sunglasses bright color to add a lot of fashionable element, but you must know that loves the United States, you see red, yellow, purple, green colored glasses are not necessarily sunglasses!
Colored glasses for a color can block light, have certain protective effect to the eyes, but cannot block ultraviolet light colored glasses itself, lost the function of the sunglasses, but can cause more damage to the eyes.
Because the human body has a self-protection instincts, eyes meet with strong light, the pupil will naturally become smaller, cut into the eyes of uv energy, once without uv protection function on the glasses, can make the pupil dilation, plus the glasses not isolate uv role, then the eye is equal to the portal is big, let ultraviolet penetration, and to increase energy, damage to the eyes.
Sunglasses factory YC9702 general sunglasses C1 black box white legs/sunglasses lens dazzle colour silver color is also very diverse, different colors have different functions, but they all have an essential function is: uv protection.
So the love of beauty is not necessarily love fashion dear friends of colored glasses sunglasses, the coming frenzy in the sunglasses, you must polish snow eye don't choose the wrong!
How to identify colored glasses and sunglasses: how about going to a glasses work first, genuine sunglasses welds is bright and clean, neat, smooth, well-balanced, with quite meticulous, and defective goods glasses do manual work is very coarse.
Next to see if the sunglasses have 'ultraviolet prevention' and 'UV400' obvious signs;
To determine the product price, after general sunglasses are above one hundred, the few money if it is a market stall products need not see, basic concluded that is colored glasses.
related: sun glasses sunglasses