Abstract
Purpose :
Ascertain the one-year outcome of patients who sustained open eye injuries from the Beirut Port Ammonium Nitrate (AN) Explosion.
Methods :
Retrospective chart review of the operated eyes in 2 major eye hospitals. The recorded data included age, gender, laterality, initial visual acuity, anterior and posterior segment examinations, the type of injury, and the Zone of Injury (Zone 1: wound limited to the cornea, Zone 2: wound of the sclera and no more posterior than 5 mm from the limbus, and Zone 3: wound posterior to anterior 5 mm of sclera).
Results :
Out of 42 patients with open globe injury that was originally sutured, 29 patients (34 eyes) were followed at the one-year mark. The initial vision in logMAR (mean±SD) was 2.93±0.87 (hand motion equivalent) and the final vision was 1.80±1.47 (counting finger 2m equivalent). No light perception (NLP) vision was noted in 12 eyes on presentation and 10 eyes remained so, while 2 eyes reached light perception (LP) vision. Eight eyes had an intraoperative expulsive choroidal hemorrhage (7 NLP and 1 LP both pre- and postoperatively), and 6 of the 8 developed phthisis. All eyes that developed phthisis had NLP preoperatively and postoperatively. Ocular Trauma Score (OTS) correlated inversely with both initial and final vision (p<0.001). Zone of injury inversely correlated with initial vision (p=0.02) and positively with final vision (p<0.001). Final vision was significantly worse in Zone 3 vs. Zones 1 and 2 (3.2±0.5) vs. 0.9±1.1) (p<0.001) injuries, as was the initial vision (3.3±0.5 vs. 2.7±0.8; p=0.002).
Conclusions :
The OTS, which provides prognostic information for serious ocular trauma, also yields valuable prognostic information for AN-associated ocular injuries. Expulsive choroidal hemorrhage and NLP vision at presentation remain very poor prognostic signs.
This abstract was presented at the 2022 ARVO Annual Meeting, held in Denver, CO, May 1-4, 2022, and virtually.