患者女,20岁。因右眼视物不清、中央视物遮挡1.5个月,于2004年12月21日来我院就诊。患者于2004年11月起无明显诱因出现右眼视物不清、视物时中央遮挡,此后逐渐加重,不伴有眼红、眼痛等刺激症状及头痛、恶心、呕吐等全身不适。既往有双眼近视10年,1年前验光检查,右眼-2.00DS=1.0 Female patient, 20 years old. Due to the blurred vision of the right eye, the central visual obstruction of 1.5 months, in December 21, 2004 to our hospital. Patients in November 2004 no obvious incentive to appear blurred vision of the right eye, depending on the material when the central block, and then gradually increased, not associated with redness, eye pain and other irritating symptoms and headache, nausea, vomiting and other general malaise. Past myopia 10 years, 1 year ago optometry, right eye -2.00DS = 1.0