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2. Sunglasses - Wikipedia

   en.wikipedia.org/wiki/Sunglasses

   Medical experts advise the public on the importance of wearing sunglasses to protect the eyes from UV; [26] 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. Sunglasses that meet this requirement are often labeled as "UV400".

3. Polarized and UV-protected sunglasses under $60

   www.aol.com/news/polarized-uv-protected...

   Polarized sunglasses help you see better and reduce glare, which can be especially bad near bodies of water. Not all polarized lenses are UV protected, and not all UV protected lenses are ...

4. Solar viewer - Wikipedia

   en.wikipedia.org/wiki/Solar_viewer

   Standard sunglasses are unable to filter out eye-damaging radiation. Solar viewers can be used for safe viewing of solar events such as eclipses . The recommended optical density of this eyewear is 5, meaning that the solar viewing filter only permits 1 part in 100,000 of incident light to pass through.

5. Ultraviolet index - Wikipedia

   en.wikipedia.org/wiki/Ultraviolet_index

   Reduce time in the sun between 10 a.m. and 4 p.m. If outdoors, seek shade and wear sun-protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 50+ sunscreen every 1.5 hours, even on cloudy days, and after swimming or sweating. Bright surfaces, such as sand, water, and snow, will increase UV exposure.

6. These Relatively Cheap Sunglasses Block UV Light, Protect ...

   www.aol.com/news/best-uv-blocking-sunglasses...

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7. Mirrored sunglasses - Wikipedia

   en.wikipedia.org/wiki/Mirrored_sunglasses

   The main purpose of sunglasses has been, and still is, protection from the Sun's damaging UV rays. Throughout history, progression of the sunglasses began to change to serve more as a fashion stable, than eye wear for sun protection. The term "Sunglasses" began being used around the 1900s.