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Scleritis is a serious inflammatory disease that affects the white outer coating of the eye, known as the sclera. The disease is often contracted through association with other diseases of the body, such as granulomatosis with polyangiitis or rheumatoid arthritis. There are three types of scleritis: diffuse scleritis (the most common), nodular scleritis, and necrotizing scleritis (the most severe). Scleritis may be the first symptom of onset of connective tissue disease. Episcleritis is inflammation of the episclera, a less serious condition that seldom develops into scleritis. == Signs and symptoms == Symptoms of scleritis include: *Redness of the sclera and conjunctiva, sometimes changing to a purple hue *Severe ocular pain, which may radiate to the temple or jaw. The pain is often described as deep or boring. *Photophobia and tearing *Decrease in visual acuity, possibly leading to blindness The pain of episcleritis is less severe than in scleritis.〔 In hyperemia, there is a visible increases in the blood flow to the sclera (hyperaemia), which accounts for the redness of the eye. Unlike in conjunctivitis, this redness will not move with gentle pressure to the conjunctiva. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Scleritis」の詳細全文を読む スポンサード リンク
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