The postoperative complications were not severe and disappeared gradually after 1 week to 3 months including palpebral hematome (25.5%), subconjunctival hemorrhagy (23.3%), injury of infraorbital nerf (7.7%), orbital hematome (5.5%), hyperglobus (5.5%), hematome of maxillary sinus (4.4%), adhession between the conjunctival incision and inferior palpebral conjunctiva (3.3%) và infection of the incision (3.3%). Conclusion: The orbital floor reconstrucion with surgical repair of injured inferior rectus muscle had better outcomes of up and down gaze than the simple orbital floor plasty.