Disease or Syndrome
arcus senilis
Subclass of:
Corneal Opacity
Etymology:
Latin arcus = arc + senilis = relating to old age
The grayish arc or ring at the edge of the cornea.
Definitions related to arcus senilis:
  • A corneal disease in which there is a deposition of phospholipid and cholesterol in the corneal stroma and anterior sclera.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
  • (corneal arcus) A hazy, grayish-white ring about 2 mm in width located close to but separated from the limbus (the corneoscleral junction). Corneal arcus generally occurs bilaterally, and is related to lipid deposition in the cornea. Corneal arcus can occur in elderly persons as a part of the aging process but may be associated with hypercholesterolemia in people under the age of 50 years.
    Human Phenotype Ontology (HPO)
    The Human Phenotype Ontology Project, 2025
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