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Year : 2003  |  Volume : 51  |  Issue : 2  |  Page : 123-128

Comparison between latanoprost and brimonidine efficacy and safety in Indian eyes

L V Prasad Eye Institute, Hyderabad, India

Correspondence Address:
R Thomas
L V Prasad Eye Institute, Hyderabad
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Source of Support: None, Conflict of Interest: None

PMID: 12831141

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Purpose: To compare the short-term efficacy and safety of topical latanoprost and brimonidine in Indian eyes. Materials and Methods: Twenty-eight patients with ocular hypertension, primary open-angle, pseudoexfoliation or pigmentary glaucoma were enrolled. Following baseline measurements, latanoprost was applied topically once daily in the evening for 12-weeks. After a washout period, brimonidine was applied twice daily in all patients for 6 weeks; 16 patients continued for 12 weeks. Patients were examined at 2, 6 and 12 weeks. The primary outcome measure was the difference in mean intra ocular pressure (IOP) reduction at 6 and 12 weeks. The mean diurnal variation of IOP at baseline and at 12 weeks was also compared. Results: Twenty-six of 28 enrolled patients completed the study. One randomly selected eye of each patient was used for analysis. At 6 weeks, the mean IOP reduction was 11.2 mm Hg ( 2.9 mmHg) with latanoprost and 6 mmHg ( 3.3 mmHg) with brimonidine. At 12 weeks this was 10.8 mmHg ( 2.8 mmHg) and 6.9 mmHg ( 3.1 mmHg) respectively. At 6 weeks 85.7% (24) eyes obtained more than 25% reduction in IOP with latanoprost compared to 13 (46.4%) with brimonidine. IOP reduction was maintained with both drugs throughout the study period. Two eyes did not show any response to brimonidine. Latanoprost reduced the diurnal variation of IOP from 5.10 to 2.90 mmHg; brimonidine reduced it from 4.70 to 3.90 mmHg. Conjunctival hyperaemia was present in one patient on latanoprost and three patients on brimonidine. Two patients experienced drowsiness with brimonidine. Neither drug produced side effects necessitating withdrawal from the study. Conclusion: In this short-term study, both latanoprost and brimonidine effectively reduced IOP and stabilised the diurnal curve in Indian eyes. Latanoprost was more effective than brimonidine.

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