Outcomes of retained intraocular foreign body removal by pars plana vitrectomy

Abstract

To outline the outcome of intra ocular foreign body removal by pars plana vitrectomy.Patients and Methods: Case series prospective interventional study that was conducted on 34 patients who underwent pars plana vitrectomy for IOFB removal during the period from November 2019 to October 2020, and attending to the outpatient and emergency unit of Mansoura Ophthalmic Center, Mansoura University. The patients were examined then scheduled for PPV for intraoperative removal of IOFB. Results:The mean age of the studied patients was 34.94±10.946 years. The majority of patients (94.1%) were males. Most of the studied patients were at occupational exposure (73.5%), most of IOFBs in the studied patients were metallic (64.7%), while 35.3%were non-metallic. The mean value of initial BCVA was 0.05±0.081 that improved at 1 week after operation to the mean value of 0.13±0.121, and then continue to improve in the follow-up visits to 0.16±0.156 in the 2 nd visit after 3 weeks, 0.19±0.176 in the 3 rd visit after 8 weeks and 0.24±0.223 in the 4 th visit after 12 weeks. There were 2 cases of raised IOP (5.9%), one case ended with macular scar (2.9%), corneal edema was persistent in one case (2.9%), and Proliferative vitreoretinopathy was noted in 5 cases (14.7%). Conclusion:IOFB removal by PPV through anterior segment technique was effective, safe, with minimal complications as well as better visual outcome. Improvement of the final BCVA can be successfully predicted by foreign body size, impaction site, initial visual acuity, afferent pupillary defect, and Ocular trauma score.