Martínez-Toldos J J, Elvira J C, Hueso J R, Artola A, Mengual E, Barceló A, Garcia J, Martínez-Reina M J
San Juan University Hospital, Alicante, Spain.
J Cataract Refract Surg. 1998 Sep;24(9):1256-60. doi: 10.1016/s0886-3350(98)80023-0.
To describe the nature and origin of foreign metallic intraocular bodies appearing after phacoemulsification.
Department of Ophthalmology, University Hospital of San Juan, Alicante, Spain.
Two metallic particles, 1 extracted during surgery and the other from a patient in whom surgery had been performed, were studied by scanning electronic microscopy and X-ray dispersive energy spectroscopy. Also evaluated were all metallic elements used in phacoemulsification including phaco tips, Sinskey hooks, and handpieces. A morphologic analysis at various magnifications was performed and the composition of the elements studied.
Scanning electronic microscopy showed irregularities of the phaco tip and Sinskey hook after their use. Spectrographic analysis found that the phaco tip was mainly aluminum and titanium; the Sinskey hook, iron, chromium, cobalt, and nickel; the handpiece, iron, chromium, and nickel; and the 2 metallic particles, iron, chromium, and nickel, the same as the handpiece.
The metallic particles extracted corresponded to those of the phaco handpiece. Vibration during prolonged use of the phacoemulsifier probably caused these particles to chip off the handpiece.
描述白内障超声乳化术后出现的眼内金属异物的性质和来源。
西班牙阿利坎特圣胡安市立大学医院眼科。
对两颗金属颗粒进行研究，其中一颗在手术中取出，另一颗来自接受过手术的患者，采用扫描电子显微镜和X射线能谱分析。还对白内障超声乳化术中使用的所有金属元件进行了评估，包括超声乳化头、辛斯基钩和手柄。对不同放大倍数下的元件进行形态学分析并研究其成分。
扫描电子显微镜显示超声乳化头和辛斯基钩在使用后表面出现不规则。光谱分析发现，超声乳化头主要由铝和钛组成；辛斯基钩由铁、铬、钴和镍组成；手柄由铁、铬和镍组成；两颗金属颗粒由铁、铬和镍组成，与手柄相同。
取出的金属颗粒与超声乳化手柄的颗粒一致。超声乳化仪长时间使用过程中的振动可能导致这些颗粒从手柄上脱落。
