Study Status: Recruiting
Recruit Status: Recruiting
Study Type: Interventional
Official Title: Pain Assessment by Pupil Dilation Reflex (PDR) and Pupillary Pain Index (PPI) in Response to Noxious Stimulation in Anesthetized Adults
Brief Summary: After conduction a pilot study, pupillary dilation reflex (PDR) is measured in response to nociceptive stimulation perioperatively.