
The efficacy and tolerability of continuing latanoprost 0.005% (Xalatan, Pfizer) after 6 weeks of latanoprost monotherapy versus switching to bimatoprost 0.03% (Lumigan, Allergan) was investigated in an investigator-masked, randomized, parallel-group trial. The results showed good efficacy and tolerability in patients whose therapy was switched to bimatoprost and suggest that bimatoprost may be tolerated better after latanoprost pre-treatment.