First and foremost, natural light is unpolarised light that vibrates in all directions. However, whenever a ray of light hits a smooth surface, i.e. when the sun encounters a wet road, the light is partially reflected by the water and guided in one direction. In other words, it is polarised.
The reflection creates an unpleasant blinding effect (glare) because of the polarised light – a safety risk not encountered by those who wear lenses with polarisation filters. The polarisation filter is installed horizontally and does not allow the reflected vertically directed light to penetrate through it. Consequently, the sometimes hazardous reflections emitted by water surfaces and wet streets are almost completely eliminated. SkyPol polarised lenses offer an additional bonus: 100% UV protection!
Polarising lenses make you safer, but they also offer some important visual benefits: thanks to the special colouring of the glass, they deliver substantially improved contrast vision and more brilliant colours. While we are talking about colours: polarising spectacles by ZEISS come in either a grey or brown shade.