Simple self-test method is to wear sunglasses mirror, dimly visible in order to limit their pupil. The color is too light filter effect is too small; too dark vision has also weakened the impact of the color sense. This year the popular and colorful light-colored sunglasses do not use water activities at the beach and the sunshine is very strong sun wear, but should wear sports -shaped sunglasses, glasses can absorb or reflect more visible. In addition to wearing Fake Oakleys Frogskins Sunglasses Cheap for Sale sunglasses to reduce glare stimulus, the eyes comfortable, but the main purpose is to prevent ultraviolet light damage to the eyes, and the lenses are UV color are two different things, even if the lens color depth, and may not be effective anti UV, so be sure to select the function labeled anti UV lenses.
Sunglasses are now very common. Has become an indispensable part of people's dress fashion. Then choose sunglasses it, the choice of sunglasses also has some luxurious. When selecting sunglasses, in addition to the requirements of their style, color and many people in the sunglasses often have darker the better idea. One of the main features is the UV filter sunglasses, as long as the UV treatment is by sunglasses, UV index can reach between 96% to 98 %, meaning that even if light sunglasses, after the UV treatment is also reached the same dark sunglasses like UV effects, anti-UV sunglasses features and its color depth no great relationship. On the contrary, if prolonged wearing dark sunglasses, the eyes see objects will be difficult, fatigue.
State for a long time in the darkroom, the pupil will enlarge, if you wear dark sunglasses, lens quality is not very good, it will absorb more ultraviolet light after dilated pupils, this will be even greater damage to the eyes, cataracts and other diseases may induce damage eyes. To learn how to select Tiffany and Co Heart Necklace Jewelry Outlet sunglasses do not hurt the eyes. The color of choice, the best choice for a more thorough filtration blue or yellow color and brightness little impact on gray. UV, because not all sunglasses are can filter ultraviolet rays. Should choose brown, gray or green sunglasses are appropriate, and then look at it there with anti- ultraviolet function. A look at the label, if the production of regular business; second look at the technical parameters, whether the UV protection standards; Third, look at the color, brown, light gray, light green eyes beneficial and good effect to reduce glare stimulation, visual clarity without distortion, anti UV, no distortion of color recognition, accurate traffic signal recognition, should be a basic function of sunglasses.
If there are defects in these functions, ranging from sunglasses would not achieve the role of weight will produce dizziness, eye soreness and other symptoms consciously adapt. A pair of sunglasses, the current standard does not necessarily have the impact or other additional UV protective properties. Only when there are explicit performance products, will be the assessment of these indicators. UV damage to the human eye is mainly determined by the wavelength of ultraviolet light, radiation time and intensity of strength and self defense mechanism of the human eye, the cornea, the lens is the most common eye tissues from UV damage, solar dermatitis and corneal endothelial damage, Sun cataract is most relevant with eye diseases. In order to protect the health of the eye, you can choose Cheap Ray Bans Wayfarer 2140 Sunglasses Outlet sunglasses with UV capabilities. Special attention should be optional UV glass lens features from random statistical point of view; the glass is difficult to fully meet the requirements of UV.