Conjunctival suffusion is an eye finding occurring early in Weil’s disease, which is caused by Leptospira interrogans. Conjunctival suffusion is characterized by redness of the conjunctiva that resembles conjunctivitis, but it does not involve inflammatory exudates. Swelling of the conjunctiva (chemosis) is seen along the corners of the eye (palpebral fissures).
About 30 percent of patients with Weil's disease develop conjunctival suffusion. When it does occur, it develops towards the end of the early phase of the illness. Even in severe cases, the suffusion occurs in the first phase of the illness.
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