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ORIGINAL ARTICLE
Year : 2016  |  Volume : 64  |  Issue : 2  |  Page : 127-131

Brinzolamide/timolol versus dorzolamide/timolol fixed combinations: A hospital-based, prospective, randomized study


1 Dar El Oyoun Hospital, El-Manial, Cairo, Egypt
2 Department of Ophthalmology, Diagnostic Laser Unit, Kasr El Aini Hospital, Cairo University, El-Manial, Cairo, Egypt

Correspondence Address:
Prof. Tamer A Macky
29th, 13th Street, Apartment #11, Maadi, Cairo 11431
Egypt
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0301-4738.179718

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Purpose: To compare the efficacy and tolerability of brinzolamide/timolol (BT) and dorzolamide/timolol (DT) fixed combinations on intraocular pressure (IOP) reduction. Methods: Patients with primary open angle glaucoma or normal tension glaucoma were randomized to receive either BT or DT. IOPs were measured at baseline, 2 weeks, and 1, 2, and 3 months. The primary outcome measures were the mean change in IOP from baseline at each visit. Secondary outcome measures included the tolerability of each fixed combination. Results: Seventy-three patients (73 eyes) were included; 37 eyes in BT group and 36 eyes in DT group. Baseline mean IOP were 24.14 ± 4.5 and 29.53 ± 6 mmHg for BT and DT, respectively (P < 0.001). Both BT and DT provided statistically significant mean IOP reductions from baseline values within each group at all study visits (P < 0.001). DT provided greater mean IOP reductions from baseline than BT at each visit which was statistically significant at 2 weeks (P = 0.037). Mean percentage of IOP reduction was 24.35% and 46.33% at 2 weeks (P < 0.001), and 24.65% and 47% at 3 months (P < 0.001) for BT and DT, respectively. Patients' tolerability appeared to be better for DT than for BT with complete ocular comfort without any ocular adverse effects in 31 patients (81.1%) in DT group and 11 patients (29.7%) in BT group (P < 0.001). Conclusion: Both drops provide effective IOP reduction which was greater, and patients were more likely to achieve lower target pressures with DT than with BT.


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