IRCT20190618043934N15 IRCT 2022-11-01 Birjand University of Medical Sciences Comparison of melatonin and midazolam on preoperative anxiety and intraoperative hemodynamic disorders in cataract surgery patients Comparison of melatonin and midazolam on preoperative anxiety and intraoperative hemodynamic disorders in patients candidates for cataract surgery 2022-11-06 anticipated 20 Complete https://irct.ir/trial/65712 interventional Randomization: Randomized, Blinding: Double blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: The placement of people in each group is randomly placed in one of two groups: the first group receiving melatonin (0.1 mg/kg of melatonin tablets manufactured by ESI Italy) (A) one hour before the operation, the second group receiving midazolam (Dose of 80-70 micrograms/kg intravenous manufactured by Elixir Pharmaceutical Company) (B) will also be given one hour before surgery. One of these blocks will be randomly selected and the patients will be divided into one of Two groups A, B. Then randomization will be done for other patients as well, Blinding description: Outcome Evaluator: The study facilitator (medical student) will perform the necessary evaluation without knowing the type of medication received by the patients and will be recorded in a checklist designed for this purpose. Patients: The patients participating in the study are not aware of their group. 3 Cataract. Intervention 1: Intervention group: Intervention group 1 patients will receive melatonin (0.1 mg/kg melatonin tablets manufactured by ASI Italy) one hour before the operation. Intervention 2: Intervention group 2: patients who are candidates for cataract surgery, will receive midazolam (70-80 micrograms/kg IV manufactured by Elixir Pharmaceutical Company) one hour before the operation. No - There is not a plan to make this available Justification or reason for not sharing IPD is There is no need to publish individual patient information