Efficacy of Bimatoprost 0.03% in Patients Who Are Low-Responders to Latanoprost

Inclusion Criteria: * · Male or female \> 18 years of age * Documented low-responder to latanoprost therapy as delineated in the outline above. * Diagnosis of open-angle glaucoma or ocular hypertension * Ability to provide informed consent and likely to complete all study visits Exclusion Criteria: * · Known contraindication to bimatoprost or any component of any study medication * Uncontrolled systemic disease * Active ocular disease other than glaucoma or ocular hypertension * Required use of ocular medications other than the study medications during the study (intermittent use of artificial tear solutions will be permitted) * History of intraocular surgery within the last 3 months