lens can effectively block the sun,

Plateau riding glasses not only have the role of blocking the sun, but also to prevent sand. Tibet travel now Jiujiao you choose 5 different colors of the plateau riding glasses. Plateau riding glasses generally have optical grade PC material lens, according to the difference between the early and Fake Ray Ban Sunglasses
late to replace the different color lenses. When you choose a friend, you must pay attention to whether or not you can add a mirror Cheap Ray Bans UK
in the mirror, while the myopia lens is the need to match their own.
1, tinted lenses tinted lenses can filter a lot of blue light, can effectively improve the visual contrast and clarity, suitable for wearing in foggy or under severe air pollution.
2, yellow lens yellow lens from the shading effect is not as good as other color lenses, almost can not reduce visible light, that is, shading effect is very Cheap Ray Ban Glasses
weak. But in the foggy Cheap Ray Ban Glasses
or dusk, yellow lenses can improve the contrast and clearer sight.
3, black mirror black lens can effectively block the sun, at noon when the sun is the most practical lenses. The lens of the myopia is very large radian (in order to achieve the effect of wind resistance, it must be designed) to cause the lens is very close to the eye. In this post hole case, but also Ray Bans UK
in the middle with a built-in myopia box that has no space as can be imagined, many riding friends reflect the eyelashes touch the lens, a pair of optical glasses normal to the eyes of the distance about 12mm in the appropriate standard. What is the consequence of shortening the distance? We can test: if you now have a pair of optical glasses, you can try to slowly move forward the glasses, you will find the line will become increasingly blurred. The reason is very simple, when the lens is closer to the eyes, the more clear, that is, the increase in the degree of lens lens, high degree of natural dizziness and eye swelling. So how do we solve this problem? I think: 25 degrees or 50 degrees in your original Ray Ban South Africa
optical degree. Now most of the myopia riding mirror is to facilitate the production and design, directly in the non myopia riding a mirror mounted on the frame
4, transparent lens transparent lens function is mainly to prevent rain or wind.
5, chrome plated lenses to be used in the Replica Ray Bans
face of the snow or high light strong ultraviolet light in the region can only be used on the plateau, we would like to have a friend.

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