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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. Photokeratitis - Wikipedia

   en.wikipedia.org/wiki/Photokeratitis

   Photokeratitis or ultraviolet keratitis is a painful eye condition caused by exposure of insufficiently protected eyes to the ultraviolet (UV) rays from either natural (e.g. intense direct or reflected sunlight) or artificial (e.g. the electric arc during welding) sources. Photokeratitis is akin to a sunburn of the cornea and conjunctiva.

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

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

   We chose sunglasses across four different style categories — round, square, cat-eye and aviator — all with polarization and UV protection, as well as great reviews. Round sunglasses Sunski ...

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

   www.aol.com/were-wearing-optometrist-approved...

   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 ...

6. Health effects of sunlight exposure - Wikipedia

   en.wikipedia.org/wiki/Health_effects_of_sunlight...

   [8] [9] UV exposure also has positive effects for endorphin levels, and possibly for protection against multiple sclerosis. Abundant visible light to the eyes gives health benefits through its association with the timing of melatonin synthesis, maintenance of normal and robust circadian rhythms, and reduced risk of seasonal affective disorder. [10]

7. Glasses - Wikipedia

   en.wikipedia.org/wiki/Glasses

   Glasses. Glasses, also known as eyeglasses and spectacles, are vision eyewear with clear or tinted lenses mounted in a frame that holds them in front of a person's eyes, typically utilizing a bridge over the nose and hinged arms, known as temples or temple pieces, that rest over the ears. Glasses are typically used for vision correction, such ...