Transcorneal Electrical Stimulation for the Treatment of Visual Field Defects in Patients With Open-Angle Glaucoma

This study tests whether transcorneal electrical stimulation (TES) — a gentle electrical stimulation applied to the eye through a contact lens-like device — can slow vision loss in people with open-angle glaucoma whose sight is still declining despite treatment. **You may be eligible if...** - You are 40 or older - You have open-angle glaucoma (including normal tension, pseudoexfoliation, or pigment dispersion types) - Your visual field is still getting worse despite treatment (losing at least 1.5 dB per year) - Your vision loss is in the moderate range (mean defect between 6 and 12 dB) - Your remaining vision in the study eye is at least 0.2 decimal (20/100) **You may NOT be eligible if...** - Your glaucoma is well-controlled with no ongoing progression - You have other eye diseases that could affect vision - You have a pacemaker or other implanted electrical device - You have had recent eye surgery Talk to your doctor to see if this trial is right for you.