Wu Tsung-Tien, Kung Ya-Hsin, Sheu Shwu-Jiuan, Yang Cheng-An
Department of Ophthalmology, Kaohsiung Veterans General Hospital, Kaohsiung, and National Yang-Ming University School of Medicine, Taipei, Taiwan, R.O.C.
J Chin Med Assoc. 2009 Jan;72(1):42-4. doi: 10.1016/S1726-4901(09)70019-X.
We report a patient with clinical ocular siderosis at the time of presentation but undetectable intraocular foreign body on computed tomography (CT) and ultrasonography. A 24-year-old man suffered from right ocular injury when hammering metal on metal. Slit-lamp examination revealed a small corneal perforating wound and an iris hole, but no intraocular foreign body was found under fundus examination. There was also no evidence of intraocular foreign body on ultrasonography and orbital CT scan. About 1 month later, lens siderosis with cataract formation developed, and the patient received lens extraction with intraocular lens implantation. During the operation, a small (< 1 x 1 x 1 mm in size) intralenticular foreign body of metal material was found and removed. The patient's visual acuity improved from 6/20 to 6/6 on the next day. A patient suspected to have intraocular foreign body should be followed-up closely; it is better to remove the foreign body before siderosis bulbi occurs.
我们报告了一名患者，其在就诊时患有临床眼铁质沉着症，但计算机断层扫描（CT）和超声检查未发现眼内异物。一名24岁男性在金属与金属锤击时右眼受伤。裂隙灯检查发现一个小的角膜穿孔伤口和一个虹膜孔，但眼底检查未发现眼内异物。超声检查和眼眶CT扫描也没有眼内异物的证据。大约1个月后，出现晶状体铁质沉着症并形成白内障，患者接受了晶状体摘除及人工晶状体植入术。手术中发现并取出了一个小的（尺寸小于1×1×1毫米）金属材料的晶状体内异物。患者术后第二天视力从6/20提高到了6/6。疑似眼内异物的患者应密切随访；最好在眼球铁质沉着症发生前取出异物。
