iStent Inject Versus Goniotomy With Kahook Dual Blade in Glauocma Treatment

Who May Qualify: - Only one eye per participant - Clinically significant cataract - Glaucoma or intraocular hypertension treated with one to four medications and no need for filtering glaucoma surgery at the time of study enrollment. - Open chamber angle with Schaffer grading three to four in at least two quadrants Who Should NOT Join This Trial: - Previous glaucoma surgery, including cyclodestructive procedures. - Selective Laser Trabeculoplasty (SLT) within 90 days prior to planned surgery. - Exudative age-related macular degeneration, proliferative diabetic retinopathy, clinically significant corneal dystrophy, other eye disease that affect intraocular eye pressure or visual field. - Unable to participate and make written consent due to another medical condition. Always talk to your doctor about whether this trial is right for you.