What causes scleritis?
Scleritis can be due to many things. Most of them are related to joint diseases (arthritis) like rheumatoid arthritis or lupus (SLE). Sometimes scleritis occurs as part of an eye infection, especially shingles. In many patients no cause can be found for the scleritis. Most patients with scleritis undergo a number of blood tests to determine if there is an underlying cause. In many patients the disease appears to be localised to the eye and there is no disease elsewhere in the body.
