IRCT20200825048515N16 IRCT 2020-12-15 Esfahan University of Medical Sciences The effect of intracameral lidocaine on hemodynamic parameters and postoperative pain in cataract surgery The effect of intracameral lidocaine on hemodynamic parameters and postoperative pain in cataract surgery under topical anesthesia and sedation 2020-12-21 anticipated 62 Complete https://irct.ir/trial/52890 interventional Randomization: Randomized, Blinding: Double blinded, Placebo: Used, Assignment: Parallel, Purpose: Treatment, Randomization description: In this study, 62 eligible patients will be randomly selected. Then, these patients will be randomly encoded using computer software called "Random Allocation" and automatically divided into two groups. The relevant codes will be entered in the raw checklists and each of these checklists will be randomly assigned to one patient and that patient will be randomly assigned to one of the two study groups, Blinding description: In this study, due to the different nature of lidocaine injection in the intervention group (in the eye chamber), the researcher is aware of the treatment used for the two groups. However, the patient due to lack of consciousness and the person evaluating the patient's hemodynamic parameters and the data analyst, will not have any information about the two groups. 2-3 Cataract extraction. Intervention 1: Control group: For patients in this group to cause local anesthesia, a drop of 0.5% tetracaine ocular drug is used topically from 20 minutes before the operation and is repeated every 5 minutes until the start of surgery. And immediately after corneal incision and before capsulorhexis, four drops of sterile BSS solution are injected into the anterior chamber. Intervention 2: Intervention group: Intervention group: For patients in the intervention group to cause local anesthesia, a drop of 0.5% tetracaine ocular drug is used topically from 20 minutes before the operation and is repeated every 5 minutes until the start of surgery. Immediately after corneal incision and before capsulorhexis, four drops of 1% lidocaine are injected into the anterior chamber without preservatives. No - There is not a plan to make this available Justification or reason for not sharing IPD is There is no further information