Pereira F, et al. - This study encompassed a comparative investigation of the efficacy of varying concentrations of topical lidocaine gel with standard subconjunctival anesthesia in pterygium surgery. Lidocaine gel use, at concentrations of 2% and 5% in pterygium surgery, was discovered to be as effective as subconjunctival injection of lidocaine in reducing intraoperative and postoperative pain. It produced markedly less pain during initial administration of the anesthetic.