Monday 4 March 2013

Polarized vs none Polarized?

Polarized vs non Polarized ?
Are polarized sunglasses worth it?
One of the main issues people encounter before purchasing sunglasses nowadays, is the popular question of what is the difference between polarized and non-polarized lenses?

Nearly every pair of sunglasses you buy give your eyes at least some protection from the sun's harsh rays.


The level of protection varies widely, but even the most bargain-basement pair of tinted lenses offer a bit of shade for your eyes. Polarized lenses take what nonpolarized lenses a step further. Polarized lenses are specially designed to protect your eyes from horizontal glare created by the sun. Think of the glare created when the sun hits the hood of your car. With a nonpolarized lens, that glare will bounce right at you. Although it will be dimmed compared to looking at it without any sunglasses, it will still shine in your eyes. Polarized lenses filter out that glare, protecting your eyes and making it easier to see.

The polarized lenses are used to block the intense light that is reflected from flat surfaces. The sunglasses made from polarized lenses are able to block the glare because they are vertically polarized while the light reflected by flat surfaces is horizontally polarized. The non-polarized lenses have a dark shade and reduce the intensity of light.

Polarized lenses have many benefits but they aren't for everyone. Some ski enthusiasts find that they make seeing the ups and downs of the hills harder than nonpolarized lenses. Others just don't do enough driving or outside sports to make springing for polarized lenses worth the extra cost.