Ray bans wayfarer--UV protection coating

UV protection coating
Some one of the most serious causes of eye diseases: UV. Depending on the frequency and wavelength, the UV is divided into two categories: UV-A and UV-B. Ray bans wayfarer sunglasses protect you from UV.
Eye as a natural protective mechanism, the people's eyes the cornea can absorb all UV-B and most of the UV-A. However, ray bans are in perfect quality.there are still part of the UV-A will reach the lens of the eye. A long time to absorb UV-A may cause cataracts, a small amount through the cornea reach the retina of the UV-A can lead to macular degeneration, macular degeneration, resulting in over 65 years old leading cause of blindness. Long-term exposure to strong ultraviolet light can cause eye cancer or actinic keratitis, retinal burns. This occurs most often sunny outdoors in winter snow, snow reflect the sun glare, and thus is often called snow blindness.
A good anti-UV coating ray ban wayfarers sunglasses can eliminate UV radiation, you must make sure your sunglasses to be able to filter out the two kinds of ultraviolet rays. Should be indicated on the label of sunglasses, the sunglasses can provide the extent to which the UV protection you need is a 100% protection.
The latest research shows that the extent of different styles of new ray ban wayfarers sunglasses block the glare stimuli is very different.
In terms of size, may be appropriate in the selection of a large number. Tourism sunglasses most of the luminosity, are not subject to the limitations of the pupillary distance, the mirror is slightly larger that can be more open vision, but also the weight of the glasses arm evenly distributed in the ears and nose. In general, the tourism glasses than ordinary glasses slightly larger than 4-6 mm is better.