COMPARISON OF 0.75 PERCENT ROPIVACAINE AND 2 PERCENT LIGNOCAINE MIXTURE WITH 0.5 PERCENT BUPIVACAINE AND 2 PERCENT LIGNOCAINE MIXTURE IN PERIBULBAR BLOCK FOR CATARACT SURGERY

Purpose To compare 0.75 percent ropivacaine lignocaine hyaluronidase mixture with 0.5 percent bupivacaine lignocaine hyaluronidase mixture in terms of onset duration of action, blocking quality effect on the intraocular pressure in peribulbar anaesthesia in cataract surgery.Materials methods A total of 50 patients scheduled for cataract surgery under peribulbar anaesthesia were randomly divided into two groups according to the anaesthetic agent used namely 0.75 percent ropivacaine with lignocaine hyaluronidase group as group A 0.5 percent bupivacaine with lignocaine hyaluronidase group as group B. Assessment of the onset of motor sensory blockade, quality of intra post operative analgesia need for supplementary anaesthesia, changes in intraocular pressure were noted. Results There was no much statistical significance in motor sensory blockade between the two groups. The need for post operative analgesia was delayed in patients under group A. No patients in either group required supplemental anaesthesia. Group A showed greater reduction of intraocular pressure compared to group B.Conclusion 0.75 percent ropivacaine is comparable with 0.5 percent bupivacaine in respect to anaesthetic properties in peribulbar block in small incision cataract surgery. 0.75 percent Ropivacaine has greater reduction in intraocular pressure has longer duration of action compared to 0.5 percent bupivacaine.Results There was no much statistical significance in motor sensory blockade between the two groups. The need for post operative analgesia was delayed in patients under group A. No patients in either group required supplemental anaesthesia. Group A showed greater reduction of intraocular pressure compared to group B.Conclusion 0.75 percent ropivacaine is comparable with 0.5 percent bupivacaine in respect to anaesthetic properties in peribulbar block in small incision cataract surgery. 0.75percent Ropivacaine has greater reduction in intraocular pressure has longer duration of action compared to 0.5 percent bupivacaine.