Abstract
To compare intraocular pressure (IOP) reduction profiles of latanoprost-timolol maleate fixed combination (LTFC) administered in the morning or evening in primary open angle glaucoma (POAG). A prospective, randomized study including 60 eyes of 30 patients with POAG was carried out. Patients were randomized to treatment with LTFC at 8 PM (Group 1) or at 8 AM (Group 2). After therapy of 4 weeks, IOP was measured at 2 AM, 6 AM,10 AM, 2 PM, 6 PM, and 10 PM and compared with baseline values and latanoprost therapy alone. Mean diurnal baseline IOPs and IOPs after treatment with latanoprost and LTFC were 23.6+/-2.6, 16.7+/-2.3, and 15.5+/-2.2 mmHg in Group 1 and 23.1+/-2.6, 16.9+/-2.4, and 15.7+/-2.4 mmHg in Group 2. LTFC lowered IOP more than latanoprost at all time points in both groups (p<0.001) (except 6 AM in Group 2). The mean IOP range after LTFC therapy was lower than the baseline in Group 1 whereas it was not different in Group 2. IOP at 10 AM was significantly higher than the other time points at baseline measurements in both groups (p<0.01) but after treatment there was no difference (p>0.05). According to IOP reduction from baseline, there was a statistically significant difference between groups in favor of Group 1 at 6 A...Continue Reading
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