It can absorb 100% of ultraviolet rays, and allows 83% of the infrared and visible light to penetrate the lens. The greatest feature of the yellow lens is to absorb a large part of the Blu-ray. Because the sun's atmosphere than light, and is based on the performance of Blu-ray (which may explain why the sky is blue). Yellow lenses absorb blue light, the natural landscape can make even more clear, therefore, yellow lenses used to as a "filter" or hunters to use in hunting. However, no one can prove that because of shooters wearing yellow glasses, target shooting and therefore better results.

It`s appreciated of u to make me know more about lenses. Does anyone know how can I buy bulks of discount sunglasses online?