Photo of Amber-Tinted Glasses (IMAGE)

Columbia University Irving Medical Center

Photo of Amber-Tinted Glasses

Caption

The amber lenses used in the insomnia study block out a substantial portion of blue light but do not result in an overall dimming of the light levels reaching the eye. Orange lenses (not tested) may be more effective for improving sleep because they block out blue light almost completely and reduce the intensity, or brightness, of light.

Credit

Ari Shechter

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