Incidence and risk factors of post-traumatic Endophthalmitis

Penetrating eye injury is a cause of endophthalmitis. Incidence and prognosis of it depends on potential risk factors. Identifying these risk factors and reducing their effects can improve prognosis. Thus this study was designed to identify the incident of post traumatic endophthalmitis and its risk factors. This study retrospectively reviewed the records of 154 patients with penetrating eye injuries who were admitted to Imam Khomeini Hospital from 2010 to 2011 and underwent repair operation. Incidence of endophthalmitis and possible risk factors such as sex، age، time interval between the accident and primary repair، location of trauma and intraocular foreign body were evaluated and compared. In this study، the incidence of culture positive post-traumatic endophthalmitis was 3. 9%. The delay of repair more than 12 hours and post traumatic endophthalmitis was statistically significant (P=0. 029). Also poor visual acuity prior to primary repair was associated with higher rate of post traumatic endophthalmitis (P=0. 00). In our study، sex، age، intraocular foreign body and location of trauma had no statistically significant relationship with post traumatic endophthalmitis. Incidence of post traumatic endophthalmitis is significant. By reducing delay of primary repair and special consideration such as prophylactic intravitreal antibiotic injection to high risk cases including low visual acuity on admission can help to improve the prognosis.