| Subject | Contents |
| Definition | Episcleritis is an inflammation (irritation and swelling) of the episclera, a membrane covering the sclera of the eye.
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| Causes, incidence, and risk factors | The sclera is composed of connective tissue fibers which form the strong white wall of the eye. It is covered by the episclera, a thin layer of tissue containing many blood vessels that nourish the sclera. At the front of the eye, the episclera is covered by the conjunctiva . Episcleritis is inflammation of the episclera which occurs in the absence of an infection. Episcleritis is usually mild and rarely progresses to scleritis . The cause is usually unknown, but certain diseases such as rheumatoid arthritis , Sjogren's syndrome , syphilis , herpes zoster and tuberculosis have been associated with episcleritis. It is a common condition. |
| Symptoms | A pink or purple coloration to the normally white part of the eye Eye painSensitivity to lightEye tendernessTearing of the eye |
| Signs and tests | Eye examination is usually sufficient to diagnose the disorder. No special tests are usually necessary. |
| Treatment | The inflammation usually runs its course without treatment in 1 to 2 weeks. Treatment with corticosteroid eye drops may shorten the course of the symptoms. |
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| Expectations (prognosis) | Episcleritis usually improves without treatment. Treatment may shorten its duration. |
| Complications | Relapses often occur Rarely, scleritis may develop |
| Calling your health care provider | Call your health care provider if symptoms of episcleritis persist beyond two weeks. Patients with episcleritis should be re-evaluated if pain worsens or if vision decreases. |
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