The large lenses are not flat but slightly convex. The design attempts to cover the entire field of vision of the human eye and significantly reduce the amount of transmitted visible light and (near) infrared radiation and prevent (erythemal) ultraviolet radiation from entering the eye from any angle. History[edit] There’s http://lanepmgyt.blog2learn.com/42075411/se-rumorea-zumbido-en-aviator-sunglasses