Inclusion Criteria:  ① Clinical manifestations: eye pain, photophobia and tears, decreased vision, conjunctival congestion and edema, etc. ② Special examination: anterior examination showed conjunctival congestion and edema, postkeratosis, anterior chamber empyema and other inflammatory manifestations. Fundus examination showed vitreous opacity, fundus hemorrhage and white lesions. ③ Laboratory examination: bacteria, viruses, fungi and Toxoplasma gondii were detected in the aqueous humor and vitreous humor of the patients.  Exclusion Criteria:  1. With tumor, rheumatoid and other autoimmune diseases. 2. Accompanied by diabetes and other systemic chronic diseases. 3. Patients with retinal and choroidal vascular diseases and history of eye surgery were excluded.