The purpose of this study is to compare the safety and efficacy of goniotomy performed with a novel ophthalmic knife compared to trabecular bypass stent implantation in mild to moderate glaucoma subjects who are also undergoing cataract extraction with phacoemulsification (Phaco) and posterior chamber intraocular lens (PCIOL) implant.

Inclusion Criteria:

• Diagnosis of open angle glaucoma (including pseudoexfoliation and pigmentary glaucoma)
• Diagnosis of mild to moderate glaucoma as defined by ICD-9 staging definitions 365.71 Mild/365.72 Moderate (including visual field defects and/or characteristic optic nerve abnormalities consistent with mild to moderate glaucoma)
• Planned removal of a visually significant cataract as determined by the Investigator (cortical, nuclear, subcapsular, or a combination) by manual phacoemulsification cataract extraction

Exclusion Criteria:

• Any glaucoma diagnosis other than those noted in inclusion criteria