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The efficacy of blue-blocking lenses in blocking blue light is not disputed, but whether typical exposure to blue light is hazardous enough to require blue blocking lenses is highly disputed. [38] One problem with the glasses is that they cannot achieve positive outcomes in blue-light hazard and sleep simultaneously.
In recent years, blue light-blocking glasses have become increasingly popular. People swear by the typically yellow- or orange-tinted spectacles to filter artificial blue light emitted from ...
Digging deeper, there are a handful of different types of blue light glasses out there (sometimes called blue light blockers). "The most popular typically filter 20 to 40% of blue-violet light ...
However, a key limitation is the duration of the trials, with assessment between one day to five weeks after wearing either the blue light or non-blue light glasses. The sample sizes also ranged ...
Blue light is absorbed by the structural proteins, enzymes, and protein metabolites found in the lens. [9] The absorption of blue light creates yellow pigments in the lens's protein. The lens progressively darkens and turns yellow. [9] Blue light is absorbed by the lens, preventing blue light from reaching the retina at the back of the eye. [12]
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]
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