Clinical Characteristics and Prognostic Factors of Posterior Segment Intraocular Foreign Body: Canadian Experience from a Tertiary University Hospital in Quebec

Table 1

Clinical characteristics of 54 study participants.

Clinical characteristics	Mean ± SD or n (%)
IOFB size, mm	5.31 ± 4.62
IOFB nature
Metallic	48 (89%)
Glass	3 (6%)
Fireworks	1 (2%)
Organic	1 (2%)
Unknown	1 (2%)
IOFB entry site
Cornea	30 (56%)
Sclera	15 (28%)
Corneoscleral	8 (15%)
Unknown	1 (2%)
IOFB location
Retina	31 (57%)
Vitreous	19 (35%)
Orbit	2 (4%)
Optic nerve	1 (2%)
Unknown	1 (2%)
Secondary clinical features
Cataract	39 (72%)
Vitreous hemorrhage	28 (52%)
Hyphema	17 (31%)
Retinal detachment	16 (30%)
Retinal tears	8 (15%)
Iris damage	6 (11%)
Choroid detachment	3 (6%)
Endophthalmitis	1 (2%)

IOFB, intraocular foreign body; SD, standard deviation.