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:
“The newest is but the oldest made visible to our senses.”
—Henry David Thoreau (1817–1862)
“With his head over his shoulder turned,
He seemed to find his way without his eyes,
For out o’ doors he went without their help,
And to the last bended their light on me.”
—William Shakespeare (1564–1616)