• An inflammatory process affecting a part of or the entire uvea. Causes include inflammatory agents (e.g., herpes simplex, herpes zoster, leptospirosis) and systemic diseases (e.g., inflammatory bowel disease, multiple sclerosis, systemic lupus erythematosus, ankylosing spondylitis). Patients present with pain and redness in the eye, light sensitivity, and blurred and decreased vision.
  NCI Thesaurus
  U.S. National Cancer Institute, 2021
• Inflammation of one or all portions of the uveal tract.
  Human Phenotype Ontology (HPO)
  The Human Phenotype Ontology Project, 2021
• Inflammation of part or all of the uvea, the middle (vascular) tunic of the eye, and commonly involving the other tunics (sclera and cornea, and the retina). (Dorland, 27th ed)
  NLM Medical Subject Headings
  U.S. National Library of Medicine, 2021
• Inflammation of the iris, ciliary body, and/or choroid (uveal tract).
  NICHD Pediatric Terminology
  U.S. National Cancer Institute, 2021
• Inflammation of the pigmented part of the eye (the iris); may seriously affect vision.
  Harvard Dictionary of Health Terms
  Harvard Medical Publishing, 2011
• A disorder characterized by inflammation to the uvea of the eye.
  Common Terminology Criteria for Adverse Events
  U.S. National Institutes of Health, 2021
• Uveitis is defined as inflammation of the uveal tract--the iris, ciliary body, and choroid. However, the retina and fluid within the anterior chamber and vitreous are often involved as well. About half of cases are idiopathic; identifiable causes include trauma, infection, and systemic diseases, many of which are autoimmune. Symptoms...
  Merck Manuals
  Merck & Co., Inc., 2020
• Uveitis is an inflammation of one or all parts of the uvea, or the vascular area between the retina and sclera of the eye. The anterior uvea is composed of the iris and ciliary body; an irritation of this segment, or anterior uveitis, leads to acute painful symptoms and photophobia. Inflammation of the posterior uvea, including the...
  Epocrates
  Athenahealth, Inc., 2019
• Uveitis, inflammation of the uvea (or uveal tract), the middle layer of tissue surrounding the eye that consists of the iris, ciliary body, and choroid. Uveitis can affect people at any age, but onset usually occurs in the third and fourth decades of life. Uveitis is classified anatomically as...
  Encyclopedia Britannica
  Encyclopedia Britannica, Inc., 2020