Univariate analysis for 40 eyes with IOFB
| Factor | No of patients | Patients with poor visual outcome (% or mean for qualitative variable) | p Value |
|---|---|---|---|
| Age (years) | 40 | 35.5 (SEM 4.5) | 0.76 |
| Shape of IOFB: | 0.18 | ||
| Sharp | 21 | 2 | |
| Winding | 11 | 4 | |
| Angular or round | 8 | 2 | |
| Largest diameter of IOFB: | 0.009 | ||
| <3 mm | 22 | 1 | |
| ⩾3 mm | 16 | 6 | |
| Largest diameter of IOFB (mm) | 40 | 10 (SEM 3.2) | <0.001 |
| IOFB location: | 0.37 | ||
| Vitreous body | 34 | 2 | |
| Retina | 6 | 6 | |
| Entry wound: | 0.42 | ||
| Corneal | 23 | 6 | |
| Corneoscleral | 4 | 0 | |
| Scleral | 13 | 2 | |
| Initial visual acuity: | 0.02 | ||
| <20/200 | 22 | 8 | |
| ⩾20/200 | 15 | 0 | |
| Initial central corneal wound: | 0.55 | ||
| Yes | 8 | 1 | |
| No | 32 | 7 | |
| Initial scleral wound: | 0.7 | ||
| Yes | 17 | 3 | |
| No | 23 | 5 | |
| Initial hyphaema: | 0.26 | ||
| Yes | 18 | 5 | |
| No | 22 | 3 | |
| Initial prolapse of intraocular tissue: | 0.07 | ||
| Yes | 5 | 3 | |
| No | 35 | 5 | |
| Initial intravitreous haemorrhage: | 0.13 | ||
| Yes | 18 | 6 | |
| No | 22 | 2 | |
| Secondary cataract: | 0.07 | ||
| Yes | 24 | 7 | |
| No | 16 | 1 | |
| Secondary retinal detachment: | 0.0001 | ||
| Yes | 8 | 6 | |
| No | 32 | 2 |