Biofeedback Training to Improve Eye Control and Vision in Adults with Hemianopia A Randomized Study of Visual and Quality of Life Outcomes

What this Trial Is About

Researchers are investigating the use of biofeedback training to help people with hemianopia, a vision loss in half of the visual field caused by brain injury such as stroke, surgery, or trauma. About 45% of stroke survivors have this condition, which can affect eye movements, reading ability, and spatial perception, impacting rehabilitation and daily life. The study aims to assess if biofeedback training can improve eye control, visual function, and quality of life for these patients. The study compares two groups one receiving biofeedback training consisting of 20-minute sessions once a week for five weeks using a microperimeter device that provides light and sound stimulation to guide eye movements, and a control group that receives no intervention but undergoes the same assessments. After the training, participants have follow-up visits at 30 days, 6 months, and 1 year, while the control group is offered training after the study. The training helps the brain use the best remaining visual area and improves fixation stability and eye movement control. Participants will undergo various vision tests including retinal sensitivity, fixation stability, reading speed, contrast sensitivity, and visual acuity for distance and near vision. They also complete a quality of life questionnaire before and after the intervention. Assessments occur at baseline, post-treatment, and during follow-ups up to two years. The study carefully monitors eye movement patterns and vision function to evaluate the impact of biofeedback training on hemianopia patients.

Biofeedback Training for Hemianopia