Diseases & Conditions


A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Pars Planitis


Synonyms of Pars Planitis
  • Intermediate Uveitis (UI)
  • Peripheral Retinal Inflammation
  • PP
  • Vitritis

Disorder Subdivisions



    General Discussion
    Although pars planitis is generally benign, there can be significant vision loss in extreme cases. It is an immunological disorder of the eye characterized by inflammation of a part of the uvea, the layer of tissue between the sclera and the retina, the membranes protecting the eyeball. The uvea, in turn, is made up of three portions: the iris, the ciliary body, and the choroid. In addition, the uvea contains many of the blood vessels that supply the eye.

    The pars plana is a narrow section of the ciliary body, inflammation of which is known as pars planitis. In association with the inflammation or immunological response, fluid and cells infiltrate the clear gelatin-like substance (vitreous humor) of the eyeball, near the retina and/or pars plana. As a result, swelling of the eye or eyes can also occur, but more importantly blurred vision and progressive increase in the vision of floaters is reported as main symptoms by patients suffering this condition as a result of the infiltration of the vitreous humor.

    The inflammation occurs in the intermediate zone of the eye; that is, between the anterior part(s) of the eye (iris) and the posterior part(s), the retina and/or choroid. It has therefore been designated as one of the diseases of a family of intermediate uveitis.

    In some cases, the disturbance of vision may be slightly progressive.

    Organizations related to Pars Planitis
    • American Autoimmune Related Diseases Association, Inc.
      22100 Gratiot Avenue
      Eastpointe MI 48021
      Phone #: 586-776-3900
      800 #: 800-598-4668
      e-mail: aarda@aarda.org
      Home page: http://www.aarda.org/
    • Association for Macular Diseases, Inc.
      210 East 64th Street
      New York NY 10021
      Phone #: 212-605-3719
      800 #: --
      e-mail: association@retinal-research.org
      Home page: http:/www.macula.org/association/about.html
    • AutoImmunity Community
      None
      None None None
      Phone #: (91-9) -552-9057
      800 #: N/A
      e-mail: bandrews@autoimmunitycommunity.org
      Home page: http://autoimmunitycommunity.org
    • NIH/National Eye Institute
      Building 31 Rm 6A32
      Bethesda MD 20892-2510
      Phone #: 301-496-5248
      800 #: --
      e-mail: 2020@nei.nih.gov
      Home page: http://www.nei.nih.gov/
    • Uveitis/OID Support Group
      5 Cambridge Center
      Cambridge MA 02142
      Phone #: 617-621-6377
      800 #: 866-353-6377
      e-mail: fosters@comcast.net
      Home page: http://www.uveitis.org



    For a Complete Report

    This is an abstract of a report from the National Organization for Rare Disorders, Inc. ? (NORD). A copy of the complete report can be obtained for a small fee by visiting the NORD website. The complete report contains additional information including symptoms, causes, affected population, related disorders, standard and investigational treatments (if available), and references from medical literature. For a full-text version of this topic, see http://www.rarediseases.org/search/rdblist.html