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Blue light is a short-wave blue light in the spectrum of colors visible to the human eye. Its wavelength is in the blue portion of the electromagnetic spectrum, which is roughly 400–500 nanometers (nm). Researchers believe that peak light damage occurs roughly at 440 nm. Computers, laptops, tablets, smartphones, and general lighting can all expose the eyes to blue light.

Blue light blocking glasses can help to filter out a percentage of blue light and lessen eye fatigue when you're working on your computer screen or using electronic devices. Say goodbye to digital eye strain with a pair of blue light blocking glasses! Also available with magnified lenses, known as "blue light glasses", for those seeking the benefits of both.

What do blue light glasses do?
Some studies may suggest that blue light glasses increase sleep quality and duration, blue light glasses can reduce headaches, reduce eye strain, and improve melatonin secretion to reduce symptoms from blue light exposure

Blue light glasses are glasses can filter out blue light. The glasses have filtering materials or surface coatings on the lenses that block a portion of blue light.

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