Endophthalmitis is a feared complication of any intraocular surgery but is of particular concern after the repair of open globe injury. Reported rates of endophthalmitis in open globe injury are higher than for intraocular surgery, presumably because of nonsterile conditions at the time of an injury. 1 Rates of posttraumatic endophthalmitis vary; in a review of 558 patients with open globes, Andreoli et al 2 found a rate of 0.9% of endophthalmitis, whereas Verbraeken and Rysselaere 3 found a rate of 4% in 615 patients, Ariyasu et al 4 found a rate of 7.2% in 670 open globe patients, and Essex et al 5 found a rate of 6.8% in 250 patients. The rate of endophthalmitis after intraocular surgery, by comparison, is approximately 0.001%. 1 In addition to suffering from higher endophthalmitis rates, patients with posttraumatic endophthalmitis have worse postoperative outcomes than patients with postoperative endophthalmitis. 6 In a study of 25 patients with endophthalmitis, Verbraeken and Rysselaere 3 found only 38% to recover functional vision (light perception or better), compared with 60% of postoperative endophthalmitis patients resulting in functional vision in a previous study by the same author.The discrepancy in endophthalmitis rates in patients after open globe repair may be attributed to variable risk factors for endophthalmitis based on patient population but also to variable antibiotic prophylactic regimens.Despite extensive literature on open globe injuries and outcomes, there have been no randomized controlled studies to establish the best prophylactic antibiotic regimen and there is no standard protocol. This review attempts to summarize the antibiotic regimens that have been used for these patients and present the current thought in appropriate