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Blue light has also been blamed for eye strain and discomfort. As a result, people have been shelling out for blue light-filtering spectacles in hopes of snoozing in peace and reducing visual fatigue.
In the simplest terms, "Blue light glasses are specialized glasses designed to filter blue light emitted from devices such as smartphones, tablets and computers," explains Dr. Sonia Kelley, OD, MS ...
Do blue light glasses work to protect your eyes from screens? Ophthalmologists share whether there are benefits to blue light glasses and tips to protect eyes.
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.
Glasses with a notch filter (e.g. EnChroma glasses) filter a narrow band of light around 590 nm that excites both the L- and M-cones (yellow-green wavelengths). [12] They are often combined with an additional stopband in the short wavelength (blue) region to minimize the tint on the lenses and approximate a neutral-density filter. They improve ...
Makers of blue-light-blocking glasses proclaim they can help reduce eye strain when looking at smartphones and computer screens for long periods of time. But an Australian-based study said these ...
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