Background: Ocular injury is one of the major causes of monocular visual impairment and blindness worldwide with significant socioeconomic impact. Objective: To evaluate the incidence, causes and visual acuity at presentation of ocular trauma cases presented to Menelik II Hospital over two months period. V Methods: A prospective cross sectional hospital-based study was conducted at Menelik II Hospital in Addis Ababa from April to June 2014. All consecutive emergency patients with ocular trauma who presented to the hospital were examined. A structured questionnaire was used to evaluate the causes, type of injury and visual acuity at presentation of trauma cases. The collected data were cleaned and analyzed using SPSS for Windows version 20. Result: Out of a total of 2765 patients seen at the department during the study period, 204 were emergency ocular trauma cases making the incidence of ocular trauma to be8 per 100ocular patients over two months. There were 147(72.1%) males and 57(27.9 %) females, the male to female ratio being 2.6.Sixty seven (32.8%) cases of ocular injury were among the 21-30 year age group followed by those in the age group 11-20 year which occurred in 46(22.5%) cases. Professionally, construction workers, farmers and welders sustained trauma to the eye in 38 (18.6%), 34 (16.7%) and 32 (15.7%) cases respectively. Unilateral involvement was seen in 190 (93.1%) of the cases while bilateral ocular trauma occurred in 14 (6.9%) patients. Blunt injury constituted 116 (56.9%) patients and penetrating injury occurred among 71 (34.8%) cases. Regarding patient arrival for treatment, 180 (88.2%) came for medical care after 24 hours have elapsed. Twenty patients (9.8%) were blind in the involved eye. Conclusion: The incidence of ocular trauma was 7.3%.Ocular trauma was more prevalent in males and productive age groups. The common cause of ocular trauma was foreign body followed by fighting. Of 204 cases half of them were accidental. This study was able to provide a better understanding of the cause and incidence of ocular trauma. Our study showed that the patients with ocular injury need urgent medical treatment. Health education about proper use of eye goggle and prompt medical management can prevent the permanent visual loss. Education about proper use of eye goggle and prompt medical management can prevent the permanent visual loss from ocular injury