arcus senilis

An oapque, grayish ring at the periphery of the cornea just within the sclerocorneal junction Etiology: 1) idiopathic 2) hypercholesterolemia (suspect if < 60 years of age) Epidemiology: frequent in the elderly Pathology: - changes in the lamellae & cells of the cornea a) deposit of fatty granules b) hyaline degeneration Laboratory: fasting lipid panel Management: treat hyperlipidemia

Related

cornea (C, K) crystalline lens (lens of eye, L) retina sclera

References

Stedman's Medical Dictionary 27th ed, Williams & Wilkins, Baltimore, 1999