are polarized lenses uv protected
A: I have heard this as well, but I've never seen any confirming studies. It does sort of make sense, though. But remember, even clear lenses can have 100 percent UV protection. Having said that, I do highly recommend quality lenses for best comfort and vision — both in regular glasses and sunglasses. In the early 20th century they were also known as sun cheaters (cheaters being an American slang term for glasses). The American Optometric Association recommends sunglasses whenever a person is in the sun. to protect the eyes from ultraviolet radiation (UV) and blue light, which can cause several serious eye problems. On top of that, selecting the correct lenses for your needs is particularly difficult. Among those choices are polarized lenses, which are incredibly popular and also more expensive than normal protective lenses. Polarized lenses offer specific protection from UV rays and are particularly suited for some activities. But, despite popular theory, polarized lenses don’t represent significantly increased UV protection. Their main advantage lies in their function. Properly manufactured sunglasses absorb 100 percent of the ultraviolet (UV) rays that can damage your eyes. If you have doubts about your sunglasses, many eye care practitioners and optical shops have little machines that can measure the amount of UV a lens can absorb. A: The amount of UV protection that sunglasses provide cannot be determined by the color of the lenses, the country of origin or the price of the eyewear. The determining factor is the lens material and any additional UV-blocking coatings that may be applied. Any of the above features, color, polarization, gradation, mirroring, and materials, can be combined into the lens for a pair of sunglasses. Gradient glasses are darker at the top of the lens where the sky is viewed and transparent at the bottom. The lenses of polarized sunglasses reduce glare reflected at some angles off shiny non-metallic surfaces such as water. They allow wearers to see into water when only surface glare would otherwise be seen, and eliminate glare from a road surface when driving into the sun. Medical experts advise the public on the importance of wearing sunglasses to protect the eyes from UV; for adequate protection, experts recommend sunglasses that reflect or filter out 99% or more of UVA and UVB light, with wavelengths up to 400 nm. Polarized light is a concentration of light waves moving in the same direction and along the same plane. Light is like a wave that vibrates in many directions—it can vibrate from side to side or up and down. Polarized glare is caused by light waves vibrating horizontally. All sunglasses with polarized sunglasses block 100 percent UV, regardless of the lens material or price of the eyewear (though polarized sunglasses tend to be more expensive than sunglasses without this extra glare-blocking feature).
Yes,Polarized lenses offer specific protection from UV rays.