In a retrospective study, the authors present the results of the surgical treatment of 6 cases of orbital floor blow-out fractures with silicone implant. The diagnosis was based on history, clinical ground and coronal tomography. The surgical procedure was the same in all patients, using silicone implant. The mean follow-up time after surgery was 3 months. The mean interval time between injury and diagnosis was 34.8 days while that between injury and surgery was 55.3 days. The fractures occurred during brawls in 3 patients, car accidents in 2 patients and child's play in 1 patient. Limitation of vertical eye movements was presents in all patients, diplopia in 4 patients, enophthalmos in 3 patients and hypesthesia in the distribution of infraorbital nerve in 1 patient. Five patients hale late repairs (> 14 days) after surgery. Postoperatively, good results were obtained with regards to limitation of vertical eye movements, diplopia, enophthalmos and hypesthesia. Only one patient had a persistent and partially reduced enophthalmos. Silicone implant was well tolerated in all cases since complications such as infection, tissue reaction and extrusion were not observed. Excellent results may be obtained after late repair of orbital floor blow-out fractures. Silicone implant has the potential to be used successfully in orbital floor fractures.