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المستخلص
The use of regional anesthesia in ophthalmic surgery has become increasingly popular over the last years because it is associated with fewer respiratory and hemodynamic unwanted events than general anesthesia. Moreover, postoperative pain relief is better controlled after regional anesthesia than general anesthesia. The efficacy of peribulbar anesthesia has made it an excellent alternative to a more traditional retrobulbar anesthesia because it is technically easy to perform and causes fewer complications. Ropivacaine is a long-acting local anesthesia with significant advantages over bupivacaine. Ropivacaine has more predictable duration of blockade, sensory selectivity, faster block onset, less pain on injection, and its higher therapeutic index that make ropivacaine an attractive agent to be used in regional ophthalmic anesthesia. We conducted a prospective double-blinded randomized study on one hundred and fifty patients undergoing cataract surgery divided into three equal groups to evaluate intraoperative clinical preoperative clinical properties of transcultaneous peribulbar block performed by either ropivacaine 0.75%, mixture of ropivacaine 0.75% lidocaine 2%, and most commonly used mixture of bupivacaine 0.5% lidocaine 2%. Hyaluronidase 15 IU/m1 was too added to all mixtures. The study was designed to assess the effect of the different local anesthesia mixtures on ocular and eyelid akinesia, pain on injection and postoperative analgesia.