One hundred eighty cataract surgery patients were randomly assigned to 1 of 4 groups of 45 patients each : Group 1-topical eyedrop anesthesia ; Group 2-intracameral lidocaine ; Group 3-lidocaine 2 % jelly applied once , on arrival at the surgicenter ; and Group 4-lidocaine 2 % jelly applied on arrival and about 5 minutes prior to surgery .
