Overview
Scleritis is an inflammatory disease that affects the conjunctiva, sclera, and episclera (the connective tissue between the conjunctiva and sclera). It is associated with underlying systemic diseases in about half of the cases. The diagnosis of scleritis may lead to the detection of underlying systemic disease. Rarely, scleritis is associated with an infectious problem.
The affected area of the sclera may be confined to small nodules, or it may cause generalized inflammation. Necrotizing scleritis, a more rare, serious type, causes thinning of the sclera. Severe cases of scleritis may also involve inflammation of other ocular tissues.
Scleritis affects women more
frequently then men. It most frequently occurs in those who are in their
40's and 50's. The problem is usually confined to one eye, but may
affect both.
Signs and Symptoms
Severe, boring pain that can awaken the patient
Local or general redness of the sclera and conjunctiva
Extreme tenderness
Light sensitivity and tearing (in some cases)
Decreased vision (if other ocular tissues are involved)
Along with visual acuity
testing, measurement of intraocular pressure, slit lamp examination, and ophthalmoscopy, the doctor may order blood tests to rule out diseases
affecting the body. If involvement of the back of the eye is suspected,
the doctor may order imaging tests such as CT Scan, MRI, or ultrasonography of
the eye.
Treatment
Scleritis is treated with oral steroid and non-steroidal anti-inflammatory medication to reduce inflammation. Eye drops alone do not provide adequate treatment. In very severe cases of necrotizing scleritis, surgery may be required to graft scleral or corneal tissue over the area of thinned sclera.