Extraction of intraocular foreign body at or near the ciliary body under endoscopic vitrectomy

Abstract

To study the feasibility and effectiveness of the extraction of intraocular foreign body (IOFB) at or near the ciliary body by using endoscopic vitrectomy. It was a retrospective case series study. Clinical materials and data of 15 patients (16 eyes) with IOFB at or near the ciliary body from July 2002 to December 2010 were analyzed retrospectively. Vitrectomy and IOFB extraction under endoscope were conducted in all cases. Thirty six IOFB (18 magnetic and 18 nonmagnetic IOFBs) were extracted successfully. The size of IOFB ranged from smaller than 1 mm×1 mm×1 mm to 9 mm×6 mm×4 mm. Among them, 31 IOFB were extracted from ciliary body or nearby and 5 IOFB were located at other places. The cornea was opaque before the operation in 11 eyes. Postoperative visual acuity was improved in 12 eyes. Vision was improved from finger-counting and below to 0.1-0.3 in 4 eyes. Intraocular pressure was normal in 14 eyes. The retina was reattached in 12 eyes. The cornea was clearer than before in 8 eyes. After the end of the fellow-up, vision was remained in finger-counting and below in only 7 eyes. There was almost no blind spot by using endoscope to observe the ciliary body, periphery retina tear or other pathological changes, the IOFB at or near ciliary body and the whole retina in the vitrectomy. This makes the extraction of IOFB at or near the ciliary body and the conduct of cyclophotocoagulation more accurate and simple.