The Baerveldt Versus ClearPath Comparison Study

The Baerveldt Versus ClearPath Comparison Study

This is a randomized prospective study of post-operative surgical outcomes and complication rates in patients with a Baerveldt 350 implant vs the Ahmed ClearPath implant. Each subject will be randomized to the Baerveldt group or ClearPath group at the time of consent for the study.

Inclusion Criteria:

• Men or women with age at screening ≥ 18 years and ≤ 90 years
• Inadequately controlled glaucoma
• Valve-less aqueous shunt as the planned surgical procedure
• Patients with primary glaucomas or pseudoexfoliation, pigmentary and traumatic glaucoma with a previous failed trabeculectomy or other intraocular surgery included.
• Primary tubes included
• Investigators to recruit consecutively all eligible patients from their clinics.
• Superotemporal or inferonasal placement of the tube
• Capable and willing to provide consent

Exclusion Criteria:

• NLP
• Unable/unwilling to provide informed consent
• Unavailable for regular follow up
• Previous cyclodestructive procedure
• Prior scleral buckling procedure or other external impediment to supratemporal drainage device implantation
• Presence of silicone oil
• Vitreous in the anterior chamber sufficient to require a vitrectomy
• Uveitic glaucoma
• Neovascular glaucoma
• Nanophthalmos
• Sturge-Weber syndrome or other conditions associated with elevated episcleral venous pressure
• Procedure combined with other surgery
• Any abnormality other than glaucoma in the study eye that could affect tonometry.