oakley sport m frame x superme sunglasses black makes you the most attractive one

Crystal discount sunglasses can raise eye? This statement is not appropriate, because crystal quality of a material is solid, stays well, take a cool feeling, so is known as a refreshing orders, but crystal Oakley sunglasses can through about 80% above the ultraviolet ray, and ultraviolet ray to the person's eye is harmful, eyes too much to absorb ultraviolet light, can cause crystal muddy, thus affecting the eyesight, according to the international standard, allowing Oakley sunglasses piece of long through UVA should be below 10%.

And medium-wave ultraviolet UVB should not through,http://www.cheapsunglassesz.com/ otherwise, it will cause damage to the eyes, but crystal mens sunglasses but can through long wave of UVA about 90%, medium wave ultraviolet UVB through about 90%, so if you use a purpose advantage to contrast ultraviolet radiation damage the disadvantage, it is not worth the cost, and ordinary optical Oakley sunglasses, high refractive Oakley sunglasses, such as Oakley sunglasses to up coating are absorbing and intercept function.

In comparison, the crystal womens sunglasses optical properties is much less than the ordinary optical Oakley sunglasses, plus crystal is quartz crystal, internal contains irregular impurities, between the floe continuous ripple, is an uneven medium, and has the birefringence effect, make the light refraction formed after double, cause inspect content is not clear, so whether natural crystal, or man-made crystal, are not suitable for Oakley sunglasses. Summer, Oakley sunglasses are numerous consumer's favor.

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