Sub-station

Spring has been past and the pollen is diminishing

by:Fuqian     2020-06-08
UV protection. Wraparound sunglasses are like a big sunscreen for your eyes because of the big frame. The invisible UV light can cause sunburn and it will damage your eyes. Protecting your eyes from UV light is critical in reducing the likelihood that you will develop cataracts and macular degeneration, which are the leading cause of vision loss over the age of 65. Polarized lenses. There are two main types of lenses, polarized and tinted. While both provide protection from UV light, tinted lenses merely reduce the brightness by darkening the lens. This is far better than no protection at all, but it doesn't come close to the protection and glare reduction that you gain from polarized sunglasses. Polarized lenses are tinted and they block 100% of the light rays from certain types of reflections including those on the water and when the sun glares accompanying bright days. Optical quality. Although most lenses protect your eyes from UV light, the optical quality of a lens determines how sharp and distortion free your vision will be. Lens material. Glass lenses provide the highest quality of vision, followed by plastic. Although glass lenses are reasonably strong, they should not be purchased if protection from impact is a key consideration. Polycarbonate is the strongest material and is a great choice for people such as military/law enforcement, construction workers, landscape company employees, etc. Lens color. Lenses most commonly come in gray, but are also seen in shades of brown as well as green. Generally brown lenses are best in overcast conditions; gray lenses excel on sunny days. The amber lenses are the good choice for the sunny days. Whatever sunglasses you choose, keep in mind that wearing sunglasses is the best choice. Polarized gray or brown sunglasses are the best choice for almost everyone, and tinted sunglasses are the great choice for pilots who can not use polarized lenses in the cockpit. However, if you have some vision problem, you can choose wraparound prescription sunglasses.
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