Table 1
Patient characteristics
| Patient No | Age | Sex | IOFB location | Mechanism of injury | Preoperative visual acuity | Time to surgery | Findings at presentation | Lens status | Gas | IOFB removal method | ABX† | Subsequent surgeries | Postoperative visual acuity | Follow up duration (months) | Time from surgery to RRD(s) (months) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NA, not applicable. | |||||||||||||||
| *Patient 1 had the entry wound repaired and an unsuccessful attempt made at IOFB removal made at an outlying facility via pars plana vitrectomy approximately 24 hours before our described external magnet extraction surgery. Preoperative visual acuity reported was the day after the initial surgical wound repair and unsuccessful vitrectomy, Findings at presentation were present hours after the injury—before any surgical intervention was undertaken, and lens status was both before the initial surgery and before our subsequent surgery. | |||||||||||||||
| †Antibiotics at time of IOFB removal. | |||||||||||||||
| 1* | 30 | M | intraretinal | metal on metal | 20/70 | ∼36 hours | corneoscleral laceration; hyphaema; vitreous haemorrhage | normal | none | external magnet; SB over extrusion site | No | None | 20/20 | 66 | NA |
| 2 | 34 | M | intramacular | fireworks | hand motion | <12 hours | scleral laceration | normal | 18% C3F8 | via enlarged pars plana sclerotomy | No | none | 20/20 | 23 | NA |
| 3 | 30 | M | intravitreal with retinal impact | pebble thrown by garden string trimmer | light perception | <8 hours | corneoscleral and retinal laceration | ruptured | none | thru surgical corneoscleral limbal incision | Yes | enucleation | NA | NA | NA |
| 4 | 73 | F | intravitreal with retinal impact | pebble thrown by power lawnmower | no light perception | <6 hours | massive corneoscleral and retinal laceration with traumatic aphakia and intraocular disorganisation | NA | none | thru massive corneo-scleral rupture | Yes | enucleation | NA | NA | NA |
| 5 | 42 | M | intraretinal | metal on metal | counting fingers | <8 hours | corneal laceration; cataract | ruptured | 20% SF6 | via enlarged pars plana sclerotomy | No | RRD repair | 20/20 | 20 | 4 |
| 6 | 31 | M | intraretinal | metal on metal | hand motion | <6 hours | corneal laceration; cataract | ruptured | 16% C3F8 | via enlarged pars plana sclerotomy | No | RRD repairs | 20/30 | 36 | 8 and 12 |
| 7 | 30 | M | intraretinal | power tool | 20/100 | <12 hours | corneoscleral laceration; cataract; vitreous haemorrhage | ruptured | 20% SF6 | via enlarged pars plana sclerotomy | No | none | 20/20 | 26 | NA |
| 8 | 17 | M | intraretinal | metal on metal | counting fingers | <8 hours | scleral laceration; vitreous haemorrhage | normal | 18% C3F8 | via enlarged pars plana sclerotomy | Yes | none | 20/25 | 31 | NA |
| 9 | 43 | M | intraretinal | metal on metal | 20/40 | 3 days | corneal laceration; cataract; vitreous haemorrhage; small RRD | sectoral cortical and posterior subcapsular opacities | 16% C3F8 | via enlarged pars plana sclerotomy | Yes | secondary PCIOL; YAG capsulotomy; LASEK | 20/15 | 31 | NA |
| 10 | 43 | M | pars plana | metal on metal | 20/20 | <12 hours | scleral laceration | normal | none | thru scleral entry site | No | (lost to long term follow up) | 20/20 | 2 | NA |
| 11 | 19 | F | subretinal | metal on rock | 20/20 | <8 hours | scleral laceration; vitreous haemorrhage: small RRD | normal | none | via enlarged pars plana sclerotomy | Yes | none | 20/20 | 21 | NA |
