INCIDENCE AND RISK FACTORS OF POSTOPERATIVE ENDOPHTHALMITIS AFTER PRIMARY SURGICAL REPAIR COMBINED WITH INTRAOCULAR FOREIGN BODY REMOVAL

Purpose: To analyze the incidence and risk factors of postoperative endophthalmitis after primary surgical repair and intraocular foreign body (IOFB) removal within 24 hours of injury. Methods: The records of all patients treated surgically for open globe injury and IOFB removal at the Eye Hospital of Shandong First Medical University between January 1, 2015, and June 30, 2020, were retrospectively reviewed. Variables included time from injury to operation, cause of injury, details of surgical repair, and follow-up. The incidence and risk factors of endophthalmitis after IOFB removal were studied. Results: During 5 years, 99 patients with IOFB were reviewed. Of these, 19 patients were diagnosed with endophthalmitis on admission, and 5 were suspected of having endophthalmitis during operation. Fifty-four cases had no clinical signs of endophthalmitis on admission and during operation and were treated with operation within 24 hours after the injury. Two patients (2 of 54; 3.70%) developed endophthalmitis after IOFB removal, and the causative agent in both cases was Bacillus cereus. Conclusion: The incidence of infectious endophthalmitis after primary surgical repair combined with IOFB removal (<= 24 hours) was 3.70% in patients who received a series of standard treatments, and B. cereus infection might be a risk factor.