|
Vernal conjunctivitis |
| Definition: |
|
A seasonal inflammation of the outer lining of the eyes (conjunctivitis), thought to be of allergic origin. |
| Causes, incidence, and risk factors: |
|
Vernal conjunctivitis is thought to be caused by allergic reactions. Often, it occurs in people with a strong family history of allergies. It is most common during the spring and summer. The condition is characterized by itchy, watery eyes. Affected people may experience burning and discomfort when they are in bright light (photophobia). The underside of the eyelids may become roughened and covered with bumps and a whitish mucus, giving them a cobblestone appearance. Tissue around the cornea where the white of the eye and the cornea meet (limbus) may become roughened and inflamed. If this tissue extends onto the cornea, it may cause scarring and decreased vision. |
| Symptoms: |
|
| Signs and tests: |
|
Horner-Trantas dots (chalky mounds of conjunctiva around the limbus) may develop from collections of eosinophils. Large bumps (papillae) on the underside of the eyelids have a characteristic cobblestone appearance. Occasionally, the cornea develops a noninfectious ulcer from the abrasive effect of the large papillae. |
| Treatment: |
|
Avoid rubbing the eyes, as this further irritates them. Cold compresses (a clean cloth soaked in cold water and then placed over the eyes) may be soothing. Topical corticosteroids may be prescribed to reduce the inflammation. Cromolyn sodium or antihistamine drops may also be prescribed. |
| Expectations (prognosis): |
|
The condition is persistent, worsening during certain seasons of the year. Treatment may provide relief. |
| Complications: |
|
| Calling your health care provider: |
| Call your health care provider if symptoms persist or worsen. |
| Prevention: |
|
Use of air conditioning or moving to a cooler climate may help to prevent future exacerbation of this problem. |
Reviewed By: Raymond S. Douglas, M.D., Ph.D., Department of Ophthalmology, Universtiy of Pennsylvania Medical Center, Philadelphia, PA. Review provided by VeriMed Healthcare Network.
 |
A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org). URAC's accreditation program is the first of its kind, requiring compliance with 53 standards of quality and accountability, verified by independent audit. A.D.A.M. is among the first to achieve this important distinction for online health information and services. A.D.A.M. is also a founding member of Hi-Ethics (www.hiethics.com) and subscribes to the principles of the Health on the Net Foundation (www.hon.ch). |
The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed physician should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. Copyright 2003 A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
