EX-PRESS® P-50 and EX-PRESS® P-200

Key Inclusion Criteria: * Able to understand and sign an Institutional Review Board (IRB) / Independent Ethics Committee (IEC) approved informed consent form authorizing data collection prior to the review of any medical records; * Implanted (one eye or both) with the EXPRESS P-50 or EXPRESS P-200 device per indications for use for at least 5 years; * Have a minimum of 5 years of recorded follow-up data; * Other protocol-specified inclusion criteria may apply. Key Exclusion Criteria: * Enrolled in any clinical trial within the last 5 years; * At the time of implantation: 1. Presence of ocular disease such as uveitis, ocular infection, severe dry eye, severe blepharitis. 2. Pre-existing ocular or systemic pathology that, in the opinion of the surgeon, is likely to cause postoperative complications following implantation of the device. 3. Diagnosed with angle-closure glaucoma. * Other protocol-defined exclusion criteria may apply.