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Intraocular pressure and exotalmometer evaluation before and after peribulbar anaesthesia in cataract surgery

PURPOSE: To compare the effects of IOP after peribulbar anaesthesia with lidocain and bupivacain for cataract surgerywith intraocular lens implantation and evaluate exoftalmometer results after the same procedure. Bupivacain and lidocain are local drugs used for peribulbar anaesthesia. It is known that intraocular pressure (IOP) is an important factor for cataract surgery to avoid complications like vitreous loss and iris hernia. METHODS: Fifty male and female patients, between 48 and 93 years old, with ASA I and II evaluation before anaesthesia were recruted to participate for this study. We had 2 groups for the study. Group 1: lidocain patients and group 2: bupivacain patients. Intraocular pressure was measured in 4 different periods: before peribulbar anaesthesia, 1 minute, 5 minutes and 7 minutes after. We also performed exoftalmometer evaluation before and right after peribulbar anaesthesia with Luedde exoftalmometer. RESULTS: There was higher IOP after peribulbar anaesthesia, but not significant when compared between both drugs. The exoftalmometer evaluation showed that both drugs are equal distributed in orbit and they both cause proptosis of the ocular globe. CONCLUSION: There was no difference comparing higher intraocular pressure or exoftalmometer evaluation between both drugs.

Peribulbar anaesthesia; Intraocular pressure; Exoftalmometer; Bupivacain; Lidocain


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