Perioperative visual loss after spine surgery: a systematic review of risk factors and report of a reversible case.
BACKGROUND Perioperative visual loss (POVL) is a rare but devastating complication of spinal surgery, most commonly associated with posterior ischemic optic neuropathy (PION) and central retinal artery occlusion (CRAO). Its pathophysiology remains multifactorial and incompletely understood. METHODS A systematic revie...