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2. Sunglasses - Wikipedia

   en.wikipedia.org/wiki/Sunglasses

   Some manufacturers already design glasses to block blue light; the insurance company Suva, which covers most Swiss employees, asked eye experts around Charlotte Remé (ETH Zürich) to develop norms for blue blocking, leading to a recommended minimum of 95% of the blue light. [31] Sunglasses are especially important for children, as their ocular ...

3. Do blue-light-blocking glasses work? This study suggests no - AOL

   www.aol.com/blue-light-blocking-glasses-study...

   Blue-light-blocking glasses claim to reduce eye strain from devices, but scientists say there are better ways to reduce the strain on eyes.

4. 15 Chic Dark Sunglasses That Actually Block Out the Sun - AOL

   www.aol.com/entertainment/15-chic-dark...

   And with summer in full force, you’re going to need those glasses to keep the sun out of your eyes. 21 Flattering Sunglasses That Scream 'I Belong to the Country Club' Before you buy your next ...

5. Biological effects of high-energy visible light - Wikipedia

   en.wikipedia.org/wiki/Biological_effects_of_high...

   Blue light, a type of high-energy light, is part of the visible light spectrum. High-energy visible light (HEV light) is short-wave light in the violet/blue band from 400 to 450 nm in the visible spectrum, which has a number of purported negative biological effects, namely on circadian rhythm and retinal health (blue-light hazard), which can lead to age-related macular degeneration.

6. Brewster's angle - Wikipedia

   en.wikipedia.org/wiki/Brewster's_angle

   Thus reflected light from horizontal surfaces (such as the surface of a road) at a distance much greater than one's height (so that the incidence angle of specularly reflected light is near, or usually well beyond the Brewster angle) is strongly s-polarized. Polarized sunglasses use a sheet of polarizing material to block horizontally-polarized ...

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

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

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