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About Blue Light Lenses

Benefits of Blue Light Glasses

Filter 30%+ of Blue-violet Light

Our blue light glasses help filter a percentage of the blue-violet light* emitted by the sun and digital devices. Styles filter at least 30% of blue-violet light*, unless otherwise stated in the product description.

Near-Clear Lenses

Our blue light filter lenses are near-clear, which means you can keep your eyes focused without distorting the colors you see.

Reduce Reflections

Anti-reflective coating increases clarity by reducing reflections.

What Is Blue Light?

Blue light, part of the visible light spectrum, is emitted from the sun (the most powerful source of blue light), as well as artificial sources, including digital devices. While, even indoors, the sun is the largest source of blue light, blue light is also found in the LEDs of our domestic lighting and our screens, though the illumination levels are lower. The visible light spectrum refers to a range of wavelengths, which include varying shades of red, orange, yellow, green, and blue light. The red end of the visible light spectrum has longer wavelengths of as high as 700 nanometers and relatively low energy levels. At the opposite end of the spectrum is high-energy blue light with wavelengths as short as 380 nanometers and as long as 500 nanometers. Blue-violet light, from 400 to 455 nm is stated as the ""potentially harmful range"" by ISO TR 20772:2018 (p14). Beyond visible blue light are ultraviolet (UV) rays, which cannot be seen by the eye, and have even shorter wavelengths and higher energy than blue light.

*Blue-violet light is between 400 and 455nm as stated by ISO TR 20772:2018