Purpose: Comments on the clinical characteristics and the effect of using UBM of lens dislocation secondary by ocular contusion injuries. Objectives and methods: Descriptive cross-sectional study on 45 eyes having dislocated lens bycontusion injuries in Traumatic Department, National Institute of Ophthalmology from.2/2012 to 7/2012. Result: 77.8 percent of working age, 76.6 percent male, 23.4 female. To the hospital vision or