The goal of this clinical trial is to compare pain scores in people undergoing upper eyelid surgery. The main questions it aims to answer are: * Is one concentration of local anesthetic (also called numbing or freezing injection) less painful when it is injected? * Does one concentration of local anesthetic provide better pain control during surgery? Participants will have two different concentrations of local anesthetic injected into the upper eyelid skin prior to surgery, and will be asked to rate the pain they have during the injection. At the end of surgery, they will be asked to rate the pain they have during surgery. Researchers will compare the pain scores to see if one of the concentrations is less painful during the injection and to see if one of the concentrations provides better pain control during surgery.
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Pain during injection
Timeframe: Immediately after injection