Document Classification

Section Type: METHODS

Text: Twenty-nine patients were randomly assigned to 2 groups in a double-blind, prospective fashion to receive 5. 125 mL of either a plain mixture LBH (2. 5 mL lidocaine 2 %, 2. 5 mL bupivacaine 0. 5 %, 5 IU/mL hyaluronidase, and 0. 125 mL isotonic saline) or pH-adjusted mixture LBH-PH (2. 5 mL lidocaine 2 %, 2. 5 mL bupivacaine 0. 5 %, 5 IU/mL hyaluronidase, and 0. 125 mL sodium bicarbonate 8. 4 %) of local anesthetics in a 1-quadrant sub-Tenon 's block.