title: On call.  At my last visit to my eye doctor, he told me that I had a cholesterol ring.  What can you tell me about this condition?
authors.forename: Harvey B
authors.initials: HB
authors.lastname: Simon
mesh_terms: D000375:Aging; D001112:Arcus Senilis / Q000209:etiology*; D002784:Cholesterol / Q000097:blood*; D006801:Humans; D008297:Male
chemical_list: D002784:Cholesterol