Polarized Sunglass Lenses and Eye Glasses

Thursday, October 13, 2011

Polarized Sunglasses & Eyeglasses: How They Work?

For years, boaters and fisherman have used polarized sunglasses to reduce glare from the water that they spend so much time on. In the past few years, however, the benefits of polarized sunglasses have been realized by a variety of outdoor sports enthusiasts as well as drivers and general use wearers. These sunglasses can be used for driving and in fact can reduce the glare that comes off a long, flat surface such as the hood of the car or the surface of a road. Polarized sunglasses can also be used indoors by light sensitive people such as post cataract surgery patients or those exposed to bright light through windows. The popularity of polarized lenses has increased dramatically as has the availability.    

The principle of polarized light reduction is best illustrated by thinking of a polarized lens as a Venetian blind. The blind blocks light at certain angles while allowing light to transmit through selected angles. Polarizing filters are aligned 90 degrees to the angle of the polarized light. As spectacle lenses are designed to eliminate the polarized light in the horizontal plane, the filter is placed vertically in the eye wire or eye rim. This means that the filter must be properly aligned during surfacing edging and layout, otherwise the filter will not work properly.

Today’s polarized sunglass lenses represent the best sun wear and outdoor lifestyle options available. If you have any questions regarding polarized lenses please call Eyewear at Willows at 203-227-9380 located at Doctor & Associates.