Blunt contusions are due to mechanical blunt forces such as bricks, fists, balls, falls, car accidents, and shock waves from explosions are common causes of blunt contusions. In addition to producing direct injury at the site of the blow, force transfer in the intraocular fluid medium and the wall of the globe can also cause multiple indirect injuries because the eye is a sphere containing fluid that is not easily compressible. Mechanical studies of ocular contusions have found that when subjected to a forceful blow, the eye can produce dramatic deformation, with a maximum possible 43% shortening of the anterior and posterior diameters and significant expansion of the circumference, so that a variety of structures in the eye can be damaged. When the internal pressure cannot be cushioned by the deformation of the eye, the pressure will break through the wall of the eye and cause rupture of the eye, a mechanism called inside-out. Blunt contusions can cause damage to the ocular appendages or the eye, causing changes to a variety of structures in the eye, such as blood accumulation in the anterior chamber or vitreous, lens dislocation, choroidal rupture, macular fissure, and scleral rupture. In some cases, the damage to the posterior segment of the eye is severe, but the damage to the anterior segment of the eye is mild, so a thorough evaluation should be done.