Inclusion Criteria:  Diagnosis of mild to moderate POAG Operable cataract, eligible for phacoemulsification with a BCVA of 20/40 or worse Medicated IOP of <=24 mmHg Unmedicated diurnal IOP of >=22 mmHg and <=34 mmHg Shaffer angle grade of III or IV CD ratio <=0.8 At least 45 years old  Exclusion Criteria:  Closed-angle and secondary glaucomas Prior incisional glaucoma surgery, intraocular surgery, or corneal surgery Cannot undergo medication washout in the study eye Diagnosis of degenerative visual disorders Non-study eye with BCVA worse than 20/80 Known corticosteroid responder Pregnant or nursing women; or women of childbearing potential not using medically acceptable birth control