RESUMO
Rationale: An orbital fracture is said to be a pure blowout when it affects only one internal orbital wall and does not compromise the orbital rim. Pure blowout fracture of the orbital floor without any other associated facial bone fracture is uncommon. Patient Concerns: The patient with a history of assault presented with complaints of blurring of vision and diplopia. Diagnosis: Computed tomography of paranasal sinus scans and ophthalmologic examination confirmed the right orbital floor fracture. Treatment: Herniated orbital contents were retrieved and the orbital floor was reconstructed with titanium mesh under general anaesthesia. Outcomes: The patient was followed up regularly for six months and showed no signs of any visual disturbances. Take-away Lessons: Although orbital floor fractures are commonly associated with zygomaticomaxillary complex and midface fractures, it is uncommon as an isolated finding in facial trauma. It can be easily misdiagnosed and left untreated, which can give rise to future complications.