Clinical outcomes of posterior segment intraocular foreign bodies: The volume effect

Summary Purpose To assess the effect of foreign body volume on visual and anatomic outcomes in patients with a posterior segment intraocular foreign body (IOFB). Methods Patients were divided into three groups according to the volume of the IOFB; group 1 (n = 18 eyes) with IOFBs  Results The mean age was 38.8 ± 12.0 years, and the median follow-up period was 12.0 (range: 6–98) months. Initial visual acuity (VA) was significantly lower in group 3 (P = 0.005), while final VA was similar between the three subgroups. Frequencies of primary globe repair, initial vitreous hemorrhage (VH), corneoscleral entry, and IOFB removal through the cornea were significantly higher in eyes with large volume IOFBs (P  Conclusion Large volume posterior segment IOFBs are associated with poor initial VA, initial VH and corneoscleral injury. Nevertheless, PPV and IOFB extraction under favorable conditions may provide significant visual improvement in eyes with large volume IOFBs.