This procedure is commonly done for a "blowout" fracture of the orbit. The anatomy of the orbital floor predisposes it to fracture.The thin floor of the orbit is broken and a piece of this bone is generally displaced downward into the maxillary sinus. Orbital tissue herniating into the sinus through the resulting defect in the orbital floor may become entrapped, causing diplopia (double vision); if the displacement of the bony fragment is large enough, enophthalmos (posterior displacement of the eyeball within the orbit) may develop, which will eventually require surgical repair with a Titanium orbital plate used most commonly. Photo credit to @saeedhajizadehh
Is this procedure completed while maintaining patient's vision?? Or will patient lose sight on affected side?