Comparing Safety and Efficacy of Combigan® and Lumigan® With Lumigan® Alone in Glaucoma or Ocular Hypertension Subjects Treated With Xalatan®

1 drop of fixed combination of brimonidine tartrate 0.2% timolol maleate 0.5% ophthalmic solution (Combigan®) taken approximately 12 hours apart, up to 2 times a day and 1 drop of bimatoprost 0.03% ophthalmic solution (Lumigan®) taken once every 24 hours.

1 drop of bimatoprost 0.03% ophthalmic solution (Lumigan®) taken approximately every 24 hours; mild lubricant eyedrops (Gen Teal® Mild) for masking purposes