A pair of Fake oakleys frogskins sunglasses cheap for sale sunglasses looks very simple, that is, in some kind of plastic or metal frame, there are two pieces of colored glass or plastic. Is there simpler than sunglasses for you? In fact, the difference between two pieces of glass lenses can produce a lot, when you use sunglasses, and these differences can have great impact on you. In this article, you will learn a variety of sunglasses, differences do exist between them.
A good pair of sunglasses must satisfy the following four functions:
1, preventing the Sun's ultraviolet radiation
UV rays can damage the cornea and retina; quality sunglasses can completely eliminate UV radiation.
2, to prevent strong light irradiation
When the eye when you receive too much light, it will naturally shrink IRIS. Once the IRIS when you shrink the limit State, then people would require squinting. If the light is still too many, such as the snow reflects the Sun's rays will be on retinal injury. Quality sunglasses can filter up to 97% eyes light in order to avoid injury.
3, preventing exposure to glare
some surfaces, such as water, can reflect a lot of light, which would disrupt the sight of the highlights or hide objects. High quality Cheap Tiffany and Co Necklace Jewelry Outlet sunglasses using polarizing technology to completely eliminate the glare, the polarizing technology described later, we will.
4, the Elimination of certain frequencies of light
some frequencies of light are blurred vision, while other frequencies of light can enhance the contrast. Choose the right color for sunglasses so that it get better results in a specific environment. If sunglasses provide UV protection, you will be more exposed to ultraviolet irradiation. Cheap sunglasses filter some of the light, because your Iris opens to receive more light. That would also allow more ultraviolet rays to enter, increased UV radiation on the retina resulting in injuries. Therefore, all kinds of sunglasses are indeed a difference between. For a specific environment, selection of suitable, high quality sunglasses will give you the maximum protection.
Wearing sunglasses can prevent common eye diseases of science?
Human life is inseparable from Sun, but Sun too strong will injury eyes, can caused eyes of acute damage, as Snowblink (also said daylight eye inflammatory), is due to big area snow (or clouds, and calm of water) reflection too Sun, makes eye of outer was UV radiation burns due to, its typical symptoms for eyes pain, and dry, and tears, and gravel foreign body sense, and skin made red, and conjunctival congestive, and edema,. Sunlight is too strong; it can trigger a chronic eye disease such as cataracts, macular degeneration, pterygium, chronic conjunctivitis, and so on. Surveys show that incidence of this disease in high altitude areas of low altitudes significantly higher, because of ultraviolet radiation at high altitude. Therefore, scientific wearing sunglasses can both prevent acute eye is ultraviolet radiation Burns, on the other hand can also prevent these chronic eye diseases.
Out of the Sun you need to wear sunglasses?
When the Sun's rays stronger, or surroundings reflect sunlight is strong, (such as when exposure to large reflective surface), you need to wear sunglasses, it shall not be required to wear. Wearing Cheap Oakleys Radar Sunglasses Discount sunglasses, mainly in the strength of the Sun's rays, not with the season, as different seasons, the Sun's rays in different parts of the strength difference is very big.