The aim of this study was to report the incidence and management of ocular firecracker
trauma and to assess the predictive value of an Ocular
Trauma Score (
OTS) in ocular firecracker
trauma. The study includes consecutive case study and retrospective analysis of ocular firecracker
trauma. Numerical values rendered to the
OTS variables (visual acuity,
rupture,
endophthalmitis, perforating or penetrating injury,
retinal detachment, and
afferent pupillary defect) at presentation were summated and converted to
OTS categories. The likelihood of the final visual acuities in each category were calculated. The sensitivity and specificity of
OTS were also determined. Forty-eight patients (54 eyes) were enrolled in the study. Male patients accounted for 85.4%. Of the total patients, 62.5% were younger than 15 years. Bystanders accounted for 47.9%. The average follow up was 18.5±3.6 months. The most common clinical manifestation was ocular penetrating or perforating injury. Of the total number of patients, 53.7% had best-corrected vision, at the time of their last follow up, ranging from 20/50-20/200. The
OTS has 100% sensitivity and specificity to predict nonlight perception, light perception/hand motion, and 1/200-19/200. The
OTS has 45% sensitivity and 100% specificity to predict vision of 20/200-20/50. The
OTS has 100% sensitivity and 65% specificity to predict vision of ≥20/40. The clinical manifestations of ocular firecracker
trauma in Zhengzhou are more severe than in other countries, but similar to reports of other cities of comparable size to that in China. The
OTS has good predictive value for ocular firecracker
trauma with 100% sensitivity and specificity to predict a final vision of nonlight perception, light perception/hand motion, and 1/200-19/200.