High energy visible light

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In ophthalmology, high energy visible light (HEV light) is high frequency light from 380 nm to 530 nm in the visible spectrumDykas, Carol. [How to Protect Patients from Harmful Sunlight.] www.2020mag.com. June, 2004.. HEV light has been implicated as a cause of age-related macular degenerationGlazer-Hockstein C, Dunaief JL. "Could blue light-blocking lenses decrease the risk of age-related macular degeneration?" Retina. 2006 Jan;26(1):1-4. PMID 16395131Margrain TH, Boulton M, Marshall J, Sliney DH. "Do blue light filters confer protection against age-related macular degeneration?" Prog Retin Eye Res. 2004 Sep;23(5):523-31. PMID 15302349.

Some sunglasses are now designed specifically to block HEV.

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