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:
“When we come down into the distant village, visible from the mountain-top, the nobler inhabitants with whom we peopled it have departed, and left only vermin in its desolate streets. It is the imagination of poets which puts those brave speeches into the mouths of their heroes.”
—Henry David Thoreau (1817–1862)
“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)