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)
“To behold the day-break!
The little light fades the immense and diaphanous shadows,
The air tastes good to my palate.
Hefts of the moving world at innocent gambols silently rising,
freshly exuding,
Scooting obliquely high and low.”
—Walt Whitman (1819–1892)