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How is scleritis diagnosed?
Scleritis is usually diagnosed by the history and the clinical findings on slit lamp examination by an ophthalmologist. The slit lamp is a special viewing instrument that eye specialists use to stabilize the head while magnifying and viewing the structures of the eye.
In order to determine the cause of the scleritis, blood tests including rheumatoid factor, antinuclear antibodies, antineutrophil cytoplasmic antibodies, human leukocyte antigen typing, and erythrocyte sedimentation rate may be ordered. If infectious disease is suspected, appropriate cultures or serological tests may be necessary. If Wegener's granulomatosis is considered, sinus X-rays and a chest X-ray may be ordered. Radiographic examination of joints may assist in the diagnosis of various types of arthritis. If orbital inflammation is suspected in addition to the scleritis, an MRI of the orbit may be helpful for diagnosis.