Comparison of the Effects of Two Glaucoma Drugs Over 24 Hours (0507A-137)(COMPLETED)

Randomized, Multicenter, Dbl-Masked, Parallel Study Evaluating the 24 Hr. Diurnal Ocular Hypotensive Effect of 2% Dorzolamide Hydrochloride/0.5% Timolol Maleate Combo. Ophthalmic Sol. in Patients w/ Open Angle Glaucoma or Ocular Hypertension

This study is comparing 2 medications for glaucoma and how effective they are at controlling glaucoma over the course of an entire day.

Inclusion Criteria:

• Patients with glaucoma or ocular hypertension

Exclusion Criteria:

• Other eye conditions
• Poor vision
• Recent eye surgery
• Use of contact lenses
• Nursing or pregnant women
• Use of some other selected medications
• Drug or alcohol abuse
• Asthma
• Slow heart beat
• Allergy or previous reaction to study drugs