in a double-masked , randomized , controlled clinical trial , the authors evaluated the ocular hypotensive efficacy of twice-daily treatment with levobunolol ( 0.25 and 0.5 % ) and betaxolol ( 0.5 % ) in 85 patients with open-angle glaucoma or ocular hypertension .
C0005320
betaxolol
C0017612
open-angle glaucoma