患者男性,36岁,因左眼突然视物不清3d来我院就诊。3d前无明显诱因左眼突然视力下降,无眼红、眼疼、头痛及恶心等伴随症状。既往体健,无高血压、糖尿病史。体检未见异常。眼部检查:右眼视力1.2,左眼0.01(不能矫正)。右眼前节及眼底检查正常。左眼角膜透明,前房清,瞳孔圆,直径约3 Male patient, 36 years old, because the left eye suddenly blurred eyesight 3d came to our hospital. No obvious predisposing factors before 3d Sudden eye vision loss, no jealous, eye pain, headache and nausea and other accompanying symptoms. Past physical health, no high blood pressure, history of diabetes. No abnormal physical examination. Eye examination: Right eye vision 1.2, left eye 0.01 (can not be corrected). Right anterior segment and fundus examination was normal. Left corneal transparent, clear anterior chamber, pupil circle, diameter of about 3