Visual Field Deficit Recovery Using Noninvasive Brain Stimulation and Visual Training After Stroke

What this Trial Is About

Researchers are investigating ways to help adults with visual field deficits caused by damage to the primary visual cortex, often due to stroke. This study aims to develop and improve a rehabilitation program using visual training combined with noninvasive brain stimulation to promote recovery of vision in the affected blind areas. The trial involves participants with different types of strokes and will assess improvements in visual abilities using standard visual field tests and motion discrimination tasks. Participants will be assigned to one of several groups receiving different interventions visual training with transcranial random noise stimulation tRNS, sham stimulation with visual training, tRNS alone without training, sham stimulation without training, or visual training using virtual reality combined with tRNS. Treatments involve daily 20 to 30-minute sessions over two weeks, where brain stimulation is delivered via electrodes placed on the scalp over the visual cortex, while participants perform visual motion tasks on a computer or in a VR headset. Throughout the study, participants will undergo assessments including visual field tests, questionnaires to measure quality of life, and electrophysiological recordings to monitor neural responses. Safety and side effects will be closely monitored daily during sessions, with a licensed physician available for any concerns. The study includes follow-up evaluations up to six months after treatment to measure lasting effects. Participants will be tracked and supported to complete scheduled visits and assessments over the study period.

Improving Visual Field Deficits With Noninvasive Brain Stimulation