48例玻璃体切除联合眼内异物取出

Extraction of intraocular foreign body associated vitrectomy in 48 cases

为探索玻璃体切除联合眼内异物取出的适应症、手术方式和提高疗效。本组分析４８例眼内异物病例，包括磁性异物２５例，非磁性异物２３例。采用玻璃体切除方法来治疗。结果：４４例（９１．７％）通过扁平部或角膜缘切口取出异物，视力改善或不变２９例（６１．７％），视网膜复位４７例（９７．８％）。结论：眼内异物伴有中间质混浊及视网膜脱离可考虑通过玻璃体切割术来取出异物及处理这些并发症。通常眼内异物通过扁平部切口用异物镊在直视下取出，但大于５ｍｍ异物需通过角膜缘切口取出。

Purpose:To explore the indication,the selection of operation and the improvement of cure rate,Methods:48 cases of intraocular foreign body (IOFBs) including 25 magnetic and 23 nonmagnetic were analysed.They were treated with pars plana vitrectomy.Results:The IOFBs of 45 cases (917%)were extracted by cut of pars plana or the cut of corneae limbus,with visual acuity improved or unchanged in 29 cases (617%) and retinalreattachment in 47 cases (978%).Conclusion:Vitrectomy technique is indicated in cases of IOFBs associated with opaque media or retinal detachment,by removing the foreign body and managing such complications at the same operation.Usually the IOFBs are extracted by cut of pars plana using foreign body forceps under direct visualization,but IOFBs of>5mm by the cut of corneae limbus.