Research Article
Intraocular Foreign Bodies: Clinical Characteristics and Factors Affecting Visual Outcome
Table 2
Univariate analysis of factors affecting the final visual outcome (BCVA < 0.05) of patients with IOFBs.
| | Factor | BCVA | X2 | | | ≥0.05 | ＜0.05 |
| | Initial PVA | | | | ≥0.1 (n = 96) | 86 (89.58) | 10 (10.42) | 31.497 | <0.001 | | <0.1 (n = 146) | 81 (55.48) | 65 (44.52) |
| | Largest IOFB diameter | | | | <3 mm (n = 89) | 70 (78.65) | 19 (21.35) | 6.121 | 0.013 | | ≥3 mm (n = 153) | 97 (63.40) | 56 (36.60) |
| | Nature of IOFBs | | | | Nonmagnetic (n = 30) | 19 (63.33) | 11 (36.67) | 0.516 | 0.473 | | Magnetic (n = 212) | 148 (69.81) | 64 (30.19) |
| | IOFB location | | | | Anterior segment (n = 62) | 56 (90.32) | 6 (9.68) | 17.706 | <0.001 | | Posterior segment (n = 180) | 111 (61.67) | 69 (38.33) |
| | Wound length | | | | <3 mm (n = 130) | 104 (80.00) | 26 (20.00) | — | <0.001# | | 3 mm∼5 mm (n = 99) | 61 (61.62) | 38 (38.38) | | >5 mm (n = 13) | 2 (15.38) | 11 (84.62) |
| | Entrance wound length > largest IOFB diameter | | | | No (n = 188) | 139 (73.94) | 49 (26.06) | 9.567 | 0.002 | | Yes (n = 54) | 28 (51.85) | 26 (48.15) |
| | Wound location | | | | Zone I (n = 186) | 128 (68.82) | 58 (31.18) | 2.468 | 0.291 | | Zone II (n = 35) | 27 (77.14) | 8 (22.86) | | Zone III (n = 21) | 12 (57.14) | 9 (42.86) |
| | Time of stage I repair surgery | | | | <24 h (n = 145) | 97 (66.90) | 48 (33.10) | 0.754 | 0.385 | | ≥24 h (n = 97) | 70 (72.16) | 27 (27.84) |
| | Time of IOFB removal | | | | <24 h (n = 120) | 86 (71.67) | 34 (28.33) | 0.787 | 0.375 | | ≥24 h (n = 122) | 81 (66.39) | 41 (33.61) |
| | Concomitant traumatic cataract | | | | No (n = 51) | 36 (70.59) | 15 (29.41) | 0.075 | 0.784 | | Yes (n = 191) | 131 (68.59) | 60 (31.41) |
| | Concomitant retinal detachment | | | | No (n = 182) | 139 (76.37) | 43 (23.63) | 18.620 | <0.001 | | Yes (n = 60) | 28 (46.67) | 32 (53.33) |
| | Concomitant vitreous hemorrhage | | | | No (n = 155) | 120 (77.42) | 35 (22.58) | 14.262 | <0.001 | | Yes (n = 87) | 47 (54.02) | 40 (45.98) |
| | Concomitant endophthalmitis | | | | No (n = 215) | 156 (72.56) | 59 (27.44) | 11.355 | 0.001 | | Yes (n = 27) | 11 (40.74) | 16 (59.26) |
| | Concomitant PVR | | | | No (n = 223) | 162 (72.65) | 61 (27.35) | 17.572 | <0.001 | | Yes (n = 19) | 5 (26.32) | 14 (73.68) |
| | Age | | | | <18 (n = 9) | 8 (88.89) | 1 (11.11) | — | 0.136# | | 18–60 (n = 217) | 151 (69.59) | 66 (30.41) | | >60(n = 16) | 8 (50.00) | 8 (50.00) |
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#Calculated using Fisher’s exact test.
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