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

Chalazion


Synonyms of Chalazion
  • Meibomian Cyst
  • Tarsal Cyst

Disorder Subdivisions



    General Discussion
    Chalazion is a round, slowly emerging, localized swelling, in the form of a cyst located on the lower or upper eyelid. (Chalazion is the Greek word for ?hailstone? which represents the size of the lump that makes up the cyst.) The usually painless, grainy (granulomatous) mass is due to inflammation, obstruction, and retained secretions of one of the glands that lubricates the edge of the eyelids. These glands secrete sebum, an oily, protective fluid. If one or more of the ducts that drain these glands is blocked, the sebum accumulates under the skin to form a cyst.

    In rare cases, if the cyst is large, blurred vision may result due to pressure on the cornea, the front, clear portion of the eye through which light passes. In some affected individuals, chalazia may disappear spontaneously. However, in other cases, treatment may be required. Individuals with chronic inflammation of the eyelids (blepharitis) may be prone to recurrences.

    Organizations related to Chalazion
    • 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/
    • Schepens Eye Research Institute
      20 Staniford Street
      Boston MA 02114-2500
      Phone #: 617-912-0100
      800 #: --
      e-mail: geninfo@vision.eri.harvard.edu
      Home page: http://www.theschepens.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