患者82岁男性1987年4月来诊,半个月来,右眼红,不痛,视力下降。在林区生活30余年,蜱外伤史10余年。否认其它病史。周身一般状况好,心肺未见异常,皮肤、关节正常。血常规检查及血沉正常。心电图及胸透正常。右眼视力0.4,左眼1.0。双眼眼压正常。右眼混合充血,角膜无水肿,KP(++).呈灰白色羊脂状,分布均匀,Tyndall(?)氏(?)征(-),前房深。瞳孔直径约3mm,光反射存在。晶体周边部可见楔形混浊。右眼玻璃体轻度混浊,呈尘埃状色素颗粒。视网膜色泽及血管走行正常,未见出血及渗出。视乳头边界清楚,黄斑反射存在。左眼角 82-year-old male patient came to the clinic in April 1987. After half a month, his right eye was red, not painful, and his vision decreased. More than 30 years of living in the forest, ticks history of more than 10 years. Denied other medical history. The general condition of the whole body is good, no abnormal heart and lung, skin, joint normal. Blood tests and normal erythrocyte sedimentation rate. ECG and thoracic normal. Right eye 0.4, left eye 1.0. IOP normal. Right eye mixed hyperemia, corneal edema, KP (++). Grayish goats, uniform distribution, Tyndall (?) Syndrome (-) sign, anterior chamber deep. Pupil diameter of about 3mm, light reflection exists. Crystal periphery visible wedge-shaped opacity. Right eye vitreous mild turbidity, dust-like pigment particles. Retinal color and blood vessels walk normally, no bleeding and exudation. Clear optic disc border, macular reflection exists. Left eye corner