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:

    Being a parent is unlike any previous job—the results of any one action are not clearly visible for a long time, if at all.
    —Anonymous Mother. As quoted in Between Generations by Ellen Galinsky, ch. 2 (1981)

    Let me give light, but let me not be light,
    For a light wife doth make a heavy husband.
    William Shakespeare (1564–1616)