What is the typical appearance of arcus senilis?

Arcus senilis typically presents as a gray or white ring at the corneal margin. This condition is often associated with aging and is caused by the deposition of lipid materials in the cornea. The presence of this ring does not usually indicate any underlying health problem in older adults; however, in younger individuals, it may suggest hyperlipidemia or other metabolic conditions.

The appearance of a gray or white ring is distinct and helps to identify arcus senilis during a physical examination. It is important for clinicians to recognize this sign, as it provides valuable information regarding the patient's age and potential lipid metabolism issues, especially if it occurs at a younger age.