Safety and Effectiveness of the VisiPlate Aqueous Shunt in Patients With Refractory Open-Angle Glaucoma

This study is evaluating the safety and effectiveness of a new drainage device called VisiPlate for treating glaucoma that hasn't responded well to other treatments. The device works like a tiny drain for excess fluid in the eye to reduce pressure. **You may be eligible if...** - You have open-angle glaucoma, pseudoexfoliative glaucoma, or pigmentary glaucoma - Your eye pressure is between 20 and 40 mmHg before surgery - Your visual field test shows significant loss - The target area of your eye has healthy tissue available for the device **You may NOT be eligible if...** - You have angle-closure, neovascular, or congenital glaucoma - You have had previous eye surgery (other than uncomplicated cataract removal) - You already have a glaucoma drain/valve in the target area - You have had significant eye inflammation or infection in the last 30 days - You have corneal disease, retinal disease, or optic nerve disorders Talk to your doctor to see if this trial is right for you.