Orbital floor burst

After the eye is subjected to blunt violence, the intraorbital pressure suddenly rises, causing the orbital floor (maxillary sinus parietal wall) fracture to move downward, which is called the orbital floor burst. Fractures of the orbital floor only are called simple orbital floor bursts; if there is a fracture of the infraorbital edge or other facial bones, it is called complex orbital floor bursts. Fractures of the orbital floor and orbital bone, fat, inferior rectus muscle, and inferior oblique muscle are trapped in the maxillary sinus, and eyeball collapse, up and down movement disorders, and diplopia. Eye loss and blindness if accompanied by eyeball and optic nerve damage. Orbital floor burst is a clinical manifestation of sinus trauma.