in a double-masked , randomized , comparison titration study to determine the effective dose of topically applied levobunolol , three concentrations of levobunolol ( 0.25 % , 0.5 % , and 1 % ) and of timolol ( 0.125 % , 0.25 % , and 0.5 % ) were evaluated in patients with mild open-angle glaucoma or ocular hypertension .
C0040233
timolol
C0017612
open-angle glaucoma