Eye protection sunglasses lens color

The sun beats down, people always like to put on a pair of trendy oakley sunglasses cheap to block the UV damage to the eyes, and there are many styles and colors on the market sunglasses for you to choose, but experts say, is not as long as the colored sunglasses to protect the eyes, not everyone can wear sunglasses. Sun glasses you choose the most beneficial health?
Qualified not only sunglasses to protect the eyes as, can protect the skin around the eye from UV, and slow down the aging. But is more dark sunglasses can block sunlight more damage to the eyes?
Parts of the eye are most sensitive to ultraviolet light. If prolonged exposure to UV stimulates the eye, can damage the cornea, lens, retina, and other organizations, leading to corneal endothelial damage, ultraviolet light, solar keratitis eye diseases such as cataract and macular lesions.
Therefore, wears sunglasses most important aim should be to reduce UV radiation on the eye against. Inferior sunglasses sunglasses-like or some high and often there is no ability to block UV rays, sunglasses can block UV rays, is added a special coating on the lenses. Block UV rays sunglasses are not available, due to a certain degree of opacity, stimulation is not strong in light of cases increasing the size of the pupil, easier not to block UV rays directly invade and cause more damage than not wearing sunglasses. Recommendations when buying sunglasses you can see if on the product label are "UV" and "UV400" identity. Select discount oakley sunglasses are not the dark color, the better. Different color lenses have different functions, generally is better in gray, green, Brown, color best does not light.
Even qualified sunglasses, not everybody is suited to wear. In patients with glaucoma need particular attention. Regardless of the sunglasses is, weakened to varying degrees of light to enter, eye and glaucoma patients in order to be able to see clearly, the pupil will enlarge, making already high intraocular pressure increased further, leading to deterioration, envy, vomiting or other symptoms occur, serious cause blindness. Therefore, in patients with glaucoma or who have a family history of glaucoma should not wear sunglasses. In addition, children in a period of Visual development, light entering the eye is needed to stimulate the eye