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Chorioretinitis

(CR; Choroiditis; Iritis; Pars Planitis)
  • Definition

    Chorioretinitis is an inflammation of the choroid, which is a lining of the retina deep in the eye. This inflammation can affect vision.
    Anatomy of the Eye
    AR00032 labeled eye
    Copyright © Nucleus Medical Media, Inc.
  • Causes

    Chorioretinitis may be caused by infection or by autoimmune diseases.
    It is sometimes caused by an infection that you had when you were young, although the symptoms may not appear for 10 to 20 years.
  • Risk Factors

    Factors that may increase your chance of chorioretinitis:
  • Symptoms

    Chorioretinitis may cause:
    • Pain or redness in the eye
    • Blurred vision, or seeing floating objects in your vision
    • Sensitivity to light or glare
    • Excessive tearing
    • Sensation of sparks or flashes of light
    • Impaired night vision
    • Impaired color vision
    • Distortion of objects
  • Diagnosis

    Your doctor will ask about your symptoms and medical history. A physical exam will be done.
    To prepare for a complete eye exam, drops may be put in your eyes to numb them and to dilate your pupils. The slit lamp, a special microscope to examine the eye, will focus a high powered beam of light into your eye to examine the cornea and other eye structures. The doctor may measure the pressure in your eyes.
    Your bodily fluids may be tested. This can be done with blood tests.
  • Treatment

    Talk with your doctor about the best treatment plan for you.
    Medications may vary depending on the cause. Other causes will also need to be treated.
    Chorioretinitis may be treated with:
    • Corticosteroid eye drops or injections to control inflammation
    • Medications for an infection, which may be present or possible
    • Dilating drops—to prevent the iris from sticking to the lens underneath, which will reduce discomfort
  • Prevention

    To help reduce your chance of chorioretinitis:
    • Have regular eye exams, especially if there is eye pain or vision problems
    • Monitor and properly treat any autoimmune diseases
    • Learn ways to prevent congenital infections that may cause chorioretinitis
  • RESOURCES

    American Optometric Association http://www.aoa.org

    Eye Smart—American Academpy of Ophthalmology http://www.eyesmart.org

    CANADIAN RESOURCES

    Canadian Ophthalmological Society http://www.cos-sco.ca

    Health Canada http://www.hc-sc.gc.ca

    References

    Figueroa BG, Navas MP, et al. Value of PCR for detection of Toxoplasma gondii in aqueous humor and blood samples from immunocompetent patients with ocular toxoplasmosis. J Clin Microbiol. 1999;37(11):3465-3468.

    Lanzafame M, Trevenzoli M, et al. Clinical picture: Tuberculous chorioretinitis. Lancet. 2001;357(9266):1390.

    Yang MB. Patient complains of blurry vision in right eye for 2 weeks. Ophthalmology Times. 1997;22(12):18-20.

    1/28/2011 DynaMed's Systematic Literature Surveillance http://www.ebscohost.com/dynamed: Berrébi A, Assouline C, et al. Long-term outcome of children with congenital toxoplasmosis. Am J Obstet Gynecol. 2010;203(6):552.e1-e6.

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