Skiers, pilots and water sports enthusiasts are sold on them. However, these lenses are also excellent solutions for virtually anyone who wears glasses: lenses with polarising effects (e.g. SkyPol ZEISS).
These special lenses prevent light reflections and mirror images created, for instance, by the sun’s rays as it hits wet pavement, water or metal surfaces. As a result, they protected wearers from eye fatigue because the eyes no longer have to adjust to constantly changing light conditions. People who wear these lenses tend to be a lot more relaxed and feel better about wearing glasses.
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.