Atenolol versus propranolol. A comparison of ocular hypotensive effect of an oral dose

In a controlled double-blind cross-over trial in 10 patients comprising six with open-angle glaucoma, three with closed-angle glaucoma, and one with ocular hypertension, a single oral dose of atenolol (50 mg) was significantly more effective than propranolol (40 mg) in reducing ocular tension.