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:
“One is not idle because one is absorbed. There is both visible and invisible labor. To contemplate is to toil, to think is to do. The crossed arms work, the clasped hands act. The eyes upturned to Heaven are an act of creation.”
—Victor Hugo (1802–1885)
“You who have condemned me, I know your kind. Your forebears poisoned Socrates, burned Joan of Arc, hanged, tortured all those whose only offense was to bring light into darkness.”
—Karl Brown (1897–1990)