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    Pinguecula

    A pinguecula is a common, non-cancerous growth of the clear, thin tissue (conjunctiva). The growth is raised slightly from the surface of thewhite part of the eye (sclera).

    Causes

    The exact cause is unknown.Long-term sunlight exposure and eye irritation may be factors.Welding is a major job-related risk.

    Symptoms

    A pingueculum is a small, yellowish bump on the conjunctiva near the cornea. It can appear on either side of the cornea, butoccursmore often on the nose (nasal) side.The growthmay increase in size over many years.

    Exams and Tests

    An eye exam is often enough to diagnose this disorder.

    Treatment

    Usually no treatment is needed. Keeping the eye moist withartificial tears may help prevent the area from becoming inflamed.Temporary use of mild steroid eye drops can alsobe helpful. Rarely, the growth may need to be removed for comfort or for cosmetic reasons.

    Outlook (Prognosis)

    This condition is non-cancerous (benign) and the outlook is good.

    Possible Complications

    The pingeucula may grow over the cornea and impair vision. When this happens, the growth is called a pterygium. These two conditions occur under similar conditions but doctors think they are separate diseases.

    When to Contact a Medical Professional

    Call your health care provider if the pinguecula changes in size, shape, or color.

    Prevention

    Things you can do that may help prevent a pingueculum or keep the problem from getting worse include:

    • Keeping the eye well lubricated
    • Wearing good quality sunglasses
    • Avoiding eye irritants

    References

    Farjo QA, Sugar A. Pterygium and conjunctival degenerations. In: Yanoff M, Duker JS, eds. Ophthalmology. 3rd ed. St. Louis, Mo: Mosby Elsevier; 2008:chap 4.9

    Zloty P, Belin MW. Pterygium. In: Tasman W, Jaeger EA, eds.Duane’s Ophthalmology. 2012 ed. Philadelphia, Pa: Lippincott Williams & Wilkins; 2012:vol 6; chap 35.

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    • Eye anatomy

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      • Eye anatomy

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      Review Date: 11/20/2012

      Reviewed By: Franklin W. Lusby, MD, Ophthalmologist, Lusby Vision Institute, La Jolla, California. Also reviewed by A.D.A.M. Health Solutions, Ebix, Inc., Editorial Team: David Zieve, MD, MHA, David R. Eltz, Stephanie Slon, and Nissi Wang.

      The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
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