Why do high-end sunglasses prefer nylon polarized lenses?
Nylon lens is a kind of ultra micro anti-ultraviolet transparent crystal material, as is widely used in aviation equipement, bullet-proof glass, military products
It has advantage of non scattering visible light but it can block UVA. UVB, different from the film isolation
Acting polarized lenses can filter glare light scattering & folding emitted light can seen truly present,
increase the color saturation, so that you have clearer field of vision.