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2. Photokeratitis - Wikipedia

   en.wikipedia.org/wiki/Photokeratitis

   Photokeratitis can be prevented by using sunglasses or eye protection that transmits 5–10% of visible light and absorbs almost all UV rays. Additionally, these glasses should have large lenses and side shields to avoid incidental light exposure. Sunglasses should always be worn, even when the sky is overcast, as UV rays can pass through ...

3. Eye protection - Wikipedia

   en.wikipedia.org/wiki/Eye_protection

   Eye protection is protective gear for the eyes, and sometimes face, designed to reduce the risk of injury. Examples of risks requiring eye protection can include: impact from particles or debris, light or radiation, wind blast, heat, sea spray or impact from some type of ball or puck used in sports.

4. Photochromic lens - Wikipedia

   en.wikipedia.org/wiki/Photochromic_lens

   Once inside, away from the triggering UV light, the cold lenses take longer to regain their transparency than warm lenses. A number of sunglass manufacturers and suppliers including INVU, BIkershades, Tifosi, Intercast, Oakley , ZEISS , Serengeti Eyewear , and Persol provide tinted lenses that use photochromism to go from a dark to a darker state.

5. Solar viewer - Wikipedia

   en.wikipedia.org/wiki/Solar_viewer

   The solar eclipse of December 26, 2019 seen through a pair of solar eclipse glasses in Jaffna, Sri Lanka. A cat demonstrating a pair of eclipse glasses. Solar viewers (also known as solar viewing glasses or solar eclipse glasses) are special eyewear designed for direct viewing of the Sun. Standard sunglasses are unable to filter out eye ...

6. 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".

7. The Dow just did something it hasn’t done since Jimmy ... - AOL

   www.aol.com/dow-danger-doing-something-hasn...

   The world’s most famous market indicator just suffered its longest losing streak since Jimmy Carter was in the White House. The Dow Jones Industrial Average closed lower by 267 points on Tuesday ...