Eighty-one participants with glaucoma after ocular surgery or secondary glaucoma with persistent and uncontrolled IOP \> 21 mmHg were randomized for placement of Baerveldt implant or Ahmed implant models using a standardized surgical technique.
The primary outcome was failure, which was defined as IOP \>16 mmHg with glaucoma medication on 2 consecutive study visits. Secondary outcomes were IOP, medication use, visual acuity, complications, and interventions.
