• (cornea ulcer) Loss of epithelial tissue from the surface of the cornea due to progressive erosion and necrosis of the tissue; usually caused by bacterial, fungal, or viral infection.
  CRISP Thesaurus
  National Institutes of Health, 2006
• Area of epithelial tissue loss from corneal surface; associated with inflammatory cells in the cornea and anterior chamber.
  NCI Thesaurus
  U.S. National Cancer Institute, 2021
• (corneal ulceration) Disruption of the epithelial layer of the cornea with involvement of the underlying stroma.
  Human Phenotype Ontology (HPO)
  The Human Phenotype Ontology Project, 2021
• A disorder characterized by an area of epithelial tissue loss on the surface of the cornea. It is associated with inflammatory cells in the cornea and anterior chamber.
  Common Terminology Criteria for Adverse Events
  U.S. National Institutes of Health, 2021
• A corneal ulcer is a corneal epithelial defect with underlying inflammation usually due to invasion by bacteria, fungi, viruses, or Acanthamoeba. It can be initiated by mechanical trauma or nutritional deficiencies, and uncontrolled inflammation can produce corneal necrosis. Symptoms are progressive conjunctival redness, foreign body...
  Merck Manuals
  Merck & Co., Inc., 2020
• This type of corneal ulcer is usually associated with a connective tissue disease, such as rheumatoid arthritis (RA), Sj�gren syndrome, Mooren ulcer, or a systemic vasculitic disorder (eg, systemic lupus erythematosus [SLE], Wegener granulomatosis, polyarteritis nodosa). RA is the most common systemic vasculitic disorder to involve the...
  Medscape
  WebMD, 2019