METHODS: Patients traumatized with retained IFB and treated with PPV were retrospectively collected from the Department of Ophthalmology, Affiliated Hospital of Southwest Medical University from 2016-1-1 to 2019-1-1. The clinical records including general condition, time and cause of injury, locations andsize of IFBs, comorbidities, and best corrected visual acuity(BCVA)were reviewed and statistical analyzed.

RESULTS: Among the 105 patients, most of them are middle-aged and young men, mostly from townships. The nature of IFB was mainly metals(62 cases, 59.0%). The entrance of IFB of 78 cases(74.3%)located at Zone I of the eye. There were 17 patients with BCVA≥0.1 before surgery, 88 patients with BCVA<0.1. And 43 patients gained BCVA≥0.1 after operation, and 62 patients with BCVA<0.1. Postoperative BCVA was significantly improved compared with preoperative BCVA(P<0.05). Through multivariate Logistic regression analysis, poor preoperative BCVA, retinal detachment, and endophthalmitis are risk factors for poor visual prognosis.

CONCLUSION: PPV for treatment of IFB can achieve a better outcome. The poor prognosis of visual acuity is related to retinal detachment, endophthalmitis, and the position and size of IFB.