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:

    When my soul leaves this human dwelling, I will not consider myself to have completely died, but to pass from one state to another, given that, in you and by you, I remain in my visible image in this world.
    François Rabelais (1494–1553)

    For all this sea-hoard of deciduous things,
    Strange woods half sodden, and new brighter stuff:
    In the slow float of differing light and deep,
    No! there is nothing! In the whole and all,
    Nothing that’s quite your own.
    Yet this is you.
    Ezra Pound (1885–1972)