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  • Title: Effect of apraclonidine versus dorzolamide on intraocular pressure after phacoemulsification.
    Author: Onal S, Gozum N, Gucukoglu A.
    Journal: Ophthalmic Surg Lasers Imaging; 2005; 36(6):457-62. PubMed ID: 16355950.
    Abstract:
    BACKGROUND AND OBJECTIVE: To investigate the efficacy of 1% apraclonidine hydrochloride and 2% dorzolamide hydrochloride in controlling postoperative intraocular pressure elevation in patients undergoing phacoemulsification. PATIENTS AND METHODS: A prospective, randomized, double-blind, placebo-controlled study was conducted. Seventy-five patients were randomized to receive either 1% apraclonidine hydrochloride, 2% dorzolamide hydrochloride, or artificial tears immediately after uncomplicated phacoemulsification. Intraocular pressure was measured by Goldmann applanation tonometer 1 to 3 hours preoperatively and 24 hours and 5 days postoperatively. RESULTS: Mean intraocular pressure measured at 24 hours and 5 days after surgery was not significantly different between groups. None of the patients had an elevated intraocular pressure of 30 mm Hg or higher. No marked difference was observed in patient age, preoperative intraocular pressure, mean ultrasound time, degree of nuclear hardness, and amount of postoperative intraocular inflammation between groups. CONCLUSION: Uneventful phacoemulsification involving meticulous cortical and viscoelastic removal does not cause a significant increase in intraocular pressure 24 hours following surgery.
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