Results: The total volume and total height of herniated orbital tissue by fractures of the orbital floor and the medial orbital wall, the anterior-posterior length of the floor fracture and the trauma-hospitalization time helped to predict the degree of enophthalmos (R =0.77, p<0.001); among them, the total volume of herniated orbital tissue had the highest correlation with the enophthalmos (R=0.60, p<0.0001).