If you see a ring, an arc, or a halo circling a person's iris, you may have spotted another common eye sign of aging, ARCUS SENILIS. Also known as CORNEAL ARCUS, these yellowish white rings are composed of cholesterol that deposits around the iris or the rim of the cornea. they are more common in men than in women and in people of African descent than in whites. Fortunately, they do not impair vision. There is some controversy surrounding the medical significance of these rings. They have been linked to xanthelasmas (see Growths On The Eyelid,
CLICK HERE), as well as high cholesterol levels, diabetes, high blood presssure, and other conditions that raise the risk of heart disease and stroke. Young people with corneal arcus rings are at particular risk. A recent Danish study showed that women with arcus senilis were more likely to have a shorter life span than women without this sign.
The cornea is the only living tissue in the body that does not contain blood vessels.
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