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:
“Value is the most invincible and impalpable of ghosts, and comes and goes unthought of while the visible and dense matter remains as it was.”
—W. Stanley Jevons (1835–1882)
“The light that never was, on sea or land,
The consecration, and the Poet’s dream;”
—William Wordsworth (1770–1850)