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2. Sunglasses - Wikipedia

   en.wikipedia.org/wiki/Sunglasses

   Hunter S. Thompson was known for wearing yellow-tinted driving glasses. When driving a vehicle, particularly at high speed, dazzling glare caused by a low Sun, or by lights reflecting off snow, puddles, other vehicles, or even the front of the vehicle, can be lethal. Sunglasses can protect against glare when driving.

3. Ultraviolet index - Wikipedia

   en.wikipedia.org/wiki/Ultraviolet_index

   Ultraviolet index. The ultraviolet index, or UV index, is an international standard measurement of the strength of the sunburn -producing ultraviolet (UV) radiation at a particular place and time. It is primarily used in daily and hourly forecasts aimed at the general public. The UV index is designed as an open-ended linear scale, directly ...

4. Glasses - Wikipedia

   en.wikipedia.org/wiki/Glasses

   Sunglasses provide more comfort and protection against bright light and often against ultraviolet (UV) light. To properly protect the eyes from the dangers of UV light, sunglasses should have UV-400 blocker to provide good coverage against the entire light spectrum that poses a danger.

5. Polarized and UV-protected sunglasses under $60

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

   Firstly, we should discuss the difference between UV protection and polarization. UV protection guards against light entering the eye and causing health problems like cataracts, sunburns and in ...

6. 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. Eye protection are typically separated into ...

7. Photochromic lens - Wikipedia

   en.wikipedia.org/wiki/Photochromic_lens

   A photochromic eyeglass lens, part of the lens darkened after exposure to sunlight while the other part remained covered. A photochromic lens is an optical lens that darkens on exposure to light of sufficiently high frequency, most commonly ultraviolet (UV) radiation. In the absence of activating light, the lenses return to their clear state.