Features of the Action of Local Anesthetics on in-Eye Pressure and Ocular Hydrodynamics.

1Norbuvi Bektemirova, Vyacheslav Avakov, Erkin Bilalov, Sardor Atajonov

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Abstract:

72 patients were surveyed (72 eyes) diagnosed with cataracts (acquired) and glaucoma, operated under local anesthesia. All patients used retrobulbar blocking and blocking of the facial nerve. We studied the analgesic action of different local anesthetics in ophthalmic surgery and their influence on intraocular pressure, producing intraocular hydrodynamics and relaxation of the eye muscles. As a local anesthetic we used 2% lidocaine, 0.5% bupivacaine and 0.5% longocaine solution. The study showed that when retrobulbar injection the total duration of anaesthesia of the eyeball under the effect of bupivacaine and longocaine (0.5%) in average was 3 times longer than when applying 2% lidocaine. Bupivacaine (0.5%) and longocaine (0.5%) used for anesthesia caused a good relaxation and resulted in a significant reduction of intraocular pressure by lowering aqueous humor secretion, improving the coefficient of aqueous humor outflow, which helps to prevent complications from the eye during surgery and in the postoperative period. Lidocaine (2%) in retrobulbar injection causes a full anesthesia of eyeball with a short duration of action. The drug does not cause proper myoplegia and its hypotensive effect is negligible.

Keywords:

lidocaine, bupivacaine, longocaine, cataract, glaucoma, retrobulbar blocking

Paper Details
Month2
Year2020
Volume24
IssueSpecial Issue 1
Pages884-889