In ophthalmology, high-energy visible light (HEV light) is high-frequency light in the violet/blue band from 380 to 500 nm in the visible spectrum. HEV light has been implicated as a cause of age-related macular degeneration.
Some sunglasses are now designed specifically to block HEV.
Read more about High-energy Visible Light: Blue-light Hazard
Famous quotes containing the words visible and/or light:
“Rome, the city of visible history, where the past of a whole hemisphere seems moving in funeral procession with strange ancestral images and trophies gathered from afar.”
—George Eliot [Mary Ann (or Marian)
““Come unto me,” [Krokowski] was saying, though not in those words, “come unto me, all ye who are weary and heavy-laden”.... He spoke of secret suffering, of shame and sorrow, of the redeeming power of the analytic. He advocated the bringing of light into the unconscious mind.”
—Thomas Mann (1875–1955)