Ocular Trauma Score in Open-Globe Injuries

Background: To determine the value of calculating an ocular trauma score (OTS) for patients with open-globe injuries. OTS evaluating system can provide valuable prognostic information, and its use may be an asset in counseling patients with open-globe injuries. Methods: This study was conducted as a retrospective review of 114 eyes of 114 patients who presented with open-globe injuries between January 2001 and July 2006. OTS variables (visual acuity, rupture, endophthalmitis, perforating injury, retinal detachment, and afferent pupillary defect) were determined and OTS was calculated in 114 eyes of 114 patients at the time of initial examination. In this study, presenting and final visual acuity were grouped (1 through 5) as >= 20/40, 20/200 to 20/50, 1/200 to 19/200, light perception (LP)/hand motion (HM), and no light perception (NLP), similar to the OTS study group. Numerical values to the OTS variables were converted into OTS categories. Similarity of final visual acuties by groups was compared with those in the OTS study. Patients under the age of two and the ones with incomplete data for OTS variables were excluded. Results: When comparing the distribution of final visual acuity in all OTS categories, no statistically significant difference was found (p = 0.35) between the results of our study and the OTS study group. NLP ratio in category 1 and >= 20/40 ratio in category 5 were statistically higher than in our study (p = 0.01). However, in our study, category 2 of LP/HM ratio (p < 0.0001) was statistically higher than in the OTS study. The likelihood of the final visual acuties (NLP, LP/HNI, 1/200 to 19/200, 20/200 to 20/50, and >= 20/40) in the other OTS categories in this group was similar to those in the OTS study group. The OTS showed positive correlation with final visual acuity (p < 0.001). Conclusion: In open-globe injuries, a commonly accepted system for calculating ocular trauma score (OTS) can provide reliable prognostic information.