Introduction. Orbital floor blowout fracture is a common traumatic lesion of the craniofacial complex, but rarely in children population, consequently representing challenge in surgical treatment. Timely diagnosis and surgical treatment prevent the probability of the occurrence of the functional complications. Case report. We presented surgical treatment of on 8-year-old girl with a blowout orbital floor fracture one month after the injury. The predominant symptoms were: ocular bulb motility disorder with consecutive strabismus and double vision. Orbital floor reconstruction was made by an autogenous mandibular symphyseal graft. A year after the orbital floor reconstruction additional correction of strabismus was performed due to functional disorder of the bulbomotor muscles. Conclusion. Delayed surgical treatment of blowout orbital floor fracture in children leads to unsatisfactory functional results in the majority of cases. In such a situation surgical correction of strabismus is necessary in order to obtain functionally quality vision and satisfactory aesthetic appearance.