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Lynne Lamberg
JAMA contributor

JAMA. 1998;280:1123-1126.

	Since this article does not have an abstract, we have provided the first 150 words of the full text and any section headings.

EIGHT OF 10 persons who are blind report frequent bouts of trouble sleeping and maintaining alertness. The cyclic nature of such complaints points to their underlying cause, desynchrony in circadian, or daily, rhythms, said speakers at the joint meeting of the Society for Research on Biological Rhythms and the Society for Light Treatment and Biological Rhythms held at Amelia Island, Fla, this spring. Better understanding of this etiology, speakers said, also holds the key to better treatment.

The high prevalence of sleep-wake disorders in blind people suggests the importance of natural light and dark cues to sighted persons in entraining, that is, anchoring, their circadian rhythms to the 24-hour day, said Robert Sack, MD, director of the Sleep Disorders Clinic at Oregon Health Sciences University (OHSU) in Portland. Light, he said, is the body's principal time cue. Light signals travel from the eye to the body's master biological . . . [Full Text of this Article]

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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES

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