Retina
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To assess subjective levels of eye pain, nausea, and sedation following vitreoretinal surgery performed with intravenous sedation and retrobulbar anesthesia. ⋯ One half of individuals undergoing vitreoretinal surgery, especially those who have lengthy procedures (>2 hours), will request pain medication within 5 hours after surgery; one half of these patients will need narcotic analgesia for pain control. Narcotics may result in nausea and sedation.