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Science and Research Around Blue Light

Blue Light is all around us, indoors and especially outdoors. While Blue-Turquoise light helps regulate our circadian rhythm, Blue-Violet Light may be harmful to our eyes.

Harmful Blue Light is the blue-violet wavelengths between 415-455nm believed to be most toxic to retinal cells.  Emerging research has pointed to a possible link between exposure to these wavelengths and long-term vision issues, such as age-related macular degeneration.

Outdoors the levels of Harmful Blue Light received from the sun are 100x more intense than the Harmful Blue Light we are exposed to indoors. The sun is the primary source of Harmful Blue Light, and studies (Cruickshanks, K.J.et) indicate that the blue light emitted from the sun is harmful to the retina.

Electronic devices and modern lighting also emit Harmful Blue Light – at much lower intensities. Indoor exposure to Harmful Blue Light is likely to increase as people convert from incandescent to modern lighting (LEDs and Compact Florescent bulbs) and the use of digital devices of all kinds continues to grow.

While the amount of exposure to Harmful Blue Light from electronic sources is at a lower intensity than what is experienced from the sun, it is important to reduce exposure from all sources of Harmful Blue Light because the potential effects it has on your eyes are cumulative over a lifetime. Also, there are no documented beneficial effects associated with exposure to the blue violet wavelengths between 415-455nm.

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