Microsurgical Vitrectomy with Pars Plana Incision for the Removal of Posterior Segment Intraocular Foreign Bodies

This study describes a pars plana incision surgical technique combined with 23 or 25-gauge vitrectomy in the management of intraocular foreign bodies (IOFBs) and to assess its anatomical and functional results. Sixteen patients with ocular trauma complicated with IOFB were enrolled in our study. The mean preoperative visual acuity was 2.01 +/- 0.55 LogMAR, and the mean postoperative visual acuity at the final visit was improved to 0.91 +/- 0.58 LogMAR (p<0.001). Until the last follow-up, all IOFBs were successfully removed and anatomic success was obtained. Complications, such as endophthalmitis, silicone oil-dependent, and ocular hypotonia, were not observed. Microsurgical vitrectomy with modified pars plana incision is a safe and effective procedure in the treatment of retained IOFB, especially associated with transparent lens and posterior segment injury.