IRCT20170523034093N1 IRCT 2017-12-26 Shahid Sadoughi University of Medical Sciences, Yazd Effect of acupressure on the rate of nausea The effect of pressure on pericardium 6 (point P6) on the rate of nausea in post Cataract surgery in elderly patients 2017-04-21 anticipated 100 Complete https://irct.ir/trial/26156 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: Simple randomization using Random Numbers Table, Blinding description: Data analysis is done by an individual who does not know about assigning a patient to a test or control group. N/A Number and severity of post operation nausea. Intervention 1: Intervention group - A bracelet that is an orb to pressure it is closed at the desired location (P6) one hour before surgery. After the induction of general anesthesia, the bracelet will be opened. Intervention 2: Control group - The same bracelet is closed at the desired location (P6) one hour before surgery. After the induction of general anesthesia, the bracelet will be opened. Undecided - It is not yet known if there will be a plan to make this available