In view of subsequent events it would be difficult to find a more interesting subject of inquiry than the internal religious and sociological conditions in Samaria at this age.
Its incidence following spine surgeries exceeds that after cardiothoracic surgeries. Various causes attributed to postoperative blindness include ischemic optic neuropathy, central or branch retinal artery occlusion, cortical blindness, and rarely external ocular injury.
ASA Postoperative Visual Loss (POVL) Registry. by Lorri A. Lee, MD. Awakening from spinal or cardiac surgery with partial or complete blindness is a devastating event. The etiology of this catastrophic perioperative complication remains largely unknown, yet its incidence appears to be increasing. The etiology of postoperative blindness is incompletely understood and multifactorial. Due to this concern, the ASA Committee on Professional Liability established the ASA Postoperative Visual Loss (POVL) Registry in July 1999 to collect detailed information on these cases.