JSON

Corneal arcus

^ http://purl.obolibrary.org/obo/HP_0001084

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. [ HPO:curators ]

Term info

database cross reference
  • UMLS:C0339268
  • MSH:D001112
  • SNOMEDCT_US:111522004
  • UMLS:C0003742
  • SNOMEDCT_US:231924000
  • SNOMEDCT_US:231925004
comment

A grey opaque line which surrounds the margin of the cornea caused by lipid deposits.

definition

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.

has alternative id

HP:0100741

has exact synonym

Corneal annulus, Arcus senilis, Anterior embryotoxon, Arcus lipoidis, Gerontoxon

has related synonym

Arcus juvenilis

id

HP:0001084

Term relations