Repetitive Transcranial Alternating Current Stimulation (rtACS) for the Treatment of Optic Neuropathies

This study is testing whether a non-invasive brain stimulation technique — repetitive transcranial alternating current stimulation (rtACS), which uses gentle electrical currents applied to the head — can improve vision in people with glaucoma-related visual field loss. **You may be eligible if...** - You are 18 years or older - You have been diagnosed with glaucoma with moderate visual field loss (within a specific range) - Your visual acuity (best corrected eyesight) in the eye being treated is at least 0.2 - Your eye pressure is considered stable by your doctor - You are able to attend all study visits and follow the schedule **You may NOT be eligible if...** - You have a history of eye herpes, retinal disease, corneal opacity, cataracts affecting vision, or uveitis - You have a pacemaker or other electronic implant - You have an autoimmune or rheumatologic disease - You have a brain tumor, metal in the head, or a history of epilepsy or cranial surgery - You have significant anxiety, claustrophobia, or dementia - You are pregnant or breastfeeding - You have had prior electrical stimulation of the eyes or visual training studies in the past year - You have uncontrolled hypertension or diabetes Talk to your doctor to see if this trial is right for you.