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:
“To him who, in the love of Nature, holds
Communion with her visible forms, she speaks
A various language: for his gayer hours”
—William Cullen Bryant (1794–1878)
“People press toward the light not in order to see better but in order to shine better.—We are happy to regard the one before whom we shine as light.”
—Friedrich Nietzsche (1844–1900)