Polarised lenses are a special type of light-filtering lens that do not have a regular tint like regular sunglasses. They are more effective at filtering glare from sunlight and reflected light, such as the sun reflecting off water, sand, snow or hot road surfaces.
Instead of a regular tint, polarised lenses have a layer that consists of hundreds of tiny vertical lines that are so small, to the naked eye they look like a solid colour. These miniature bars effectively block horizontal light waves, allowing only vertical waves to pass through. This is probably better explained with a more visual method:
As most glare is carried on horizontal light waves, vertically polarised lenses are extremely effective at removing the effects of glare, improving your ability to see clearly on even the sunniest of days, whether you are out driving, cycling, working or relaxing on the beach.
All polarised lenses also come with UV400 protection as a standard, ensuring that your eyes are protected from the harmful effects of exposure to UV – essential for your holiday sunbathing sessions!
You can choose a polarised tint for your regular sunglasses, or even have polarised prescription sunglasses if desired – just remember that, like all sunglasses, they aren’t ideal for wearing indoors!
At Lichfield Street Opticians, as well as offering polarised tints as an option for your prescription lenses, we also stock a range of Polaroid sunglasses. Polaroid – the company which invented polarised lenses, are recognised the world over as the definitive authority on polarised lenses and the technology behind these fashionable marvels.