High-energy Visible Light

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:

    Rome, the city of visible history, where the past of a whole hemisphere seems moving in funeral procession with strange ancestral images and trophies gathered from afar.
    George Eliot [Mary Ann (or Marian)

    The light passes
    from ridge to ridge,
    from flower to flower—
    Hilda Doolittle (1886–1961)