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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. We're Wearing These Optometrist-Approved Sunglasses All ... - AOL

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   Retro Vintage Narrow Cat Eye Sunglasses. UV Protection: 100%. These cat-eye sunnies are an updated take on a vintage shape, and thanks to the contrasting white and black color palette, they're an ...

4. Polarized and UV-protected sunglasses under $60 - AOL.com

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   Sunski’s sunglasses come with a lifetime warranty and have a 4.3-star average rating from more than 150 customer reviews. Sunski Camina Black Slate Knockaround Deja Views Poison Ivy

5. Ultraviolet - Wikipedia

   en.wikipedia.org/wiki/Ultraviolet

   For clothing, the ultraviolet protection factor (UPF) represents the ratio of sunburn-causing UV without and with the protection of the fabric, similar to sun protection factor (SPF) ratings for sunscreen. [citation needed] Standard summer fabrics have UPFs around 6, which means that about 20% of UV will pass through. [citation needed]

6. Sunscreen - Wikipedia

   en.wikipedia.org/wiki/Sunscreen

   The sun protection factor (SPF rating, introduced in 1974) is a measure of the fraction of sunburn-producing UV rays that reach the skin. For example, "SPF 15" means that 1 ⁄ 15 of the burning radiation will reach the skin, assuming sunscreen is applied evenly at a thick dosage of 2 milligrams per square centimeter [68] (mg/cm 2). It is ...

7. Ultraviolet index - Wikipedia

   en.wikipedia.org/wiki/Ultraviolet_index

   A UV index reading of 6 to 7 means high risk of harm from unprotected sun exposure. Protection against skin and eye damage is needed. 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.