Zone 1 trauma: wound dehiscence compared to primary trauma.

PURPOSE: The study aims to assess if Zone 1 globe injuries hold a favorable prognosis for all situations, including wound dehiscence, or just primary traumatic injuries.

METHODS: Retrospective cross-sectional chart review of patients who underwent open globe repair from 1/1/2019 to 12/1/2020 at an urban hospital setting was evaluated for final visual outcomes, associated ocular pathology, long-term complications, and need for further surgeries.

RESULTS: Fifty-eight eyes were identified-38 primary trauma and 20 dehisced wounds (11 penetrating keratoplasties, five clear corneal incisions, one laceration, one extracapsular cataract extraction, one radial keratotomy, and one tectonic graft). Dehisced wounds had more posterior segment pathology vs primary trauma, i.e., hemorrhagic choroidal, vitreous hemorrhage, retinal detachment, choroidal effusion (all 20% vs 2.63%, 5.26%, 5.26%, and 0%, respectively), vitreous prolapse (20% vs 2.63%), and uveal prolapse (80% vs 36.84%). Dehisced wounds had more traumatic aphakia (40% vs 0%) and dislocated lenses (15% vs 0%). Primary trauma was more likely to have traumatic cataracts (55.26% vs 10%) or no lens changes (44.74% vs 25%). About 10% dehisced wounds required enucleation (0% primary trauma). Cataract/secondary intraocular lens surgery was performed in 34% of the primary traumas (10% in dehisced wounds). Primary traumas achieved 20/40 vision or better in 44.74% (10% dehisced wounds). About 7.89% of patients with wound dehiscence ended with no light perception (none in primary trauma).

CONCLUSION: Zone 1 open globe injuries due to wound dehiscence may exhibit worse prognosis compared to primary trauma open globe injury. More important than the zone of injury may be the source.