Biofeedback Training to Improve Fixation Stability, Visual Function Outcomes, and Quality of Life in Hemianopia Cases

What this Trial Is About

Researchers are studying the effects of biofeedback training (BT) on patients with homonymous hemianopia, a vision loss condition affecting one half of the visual field due to brain injury from stroke, surgery, or trauma. This condition often leads to difficulties in eye movements, reading, and spatial perception, which can slow rehabilitation progress. The study aims to systematically assess the impact of BT on vision rehabilitation and formulate guidelines for its use in hemianopia cases. The study involves training oculomotor functions using the biofeedback module of a microperimeter device called MAIA. Participants are randomly assigned to two groups: one receiving BT intervention and the other with no intervention initially. BT uses visual and auditory feedback to improve eye control, fixation stability, and reading ability by helping patients shift their gaze towards their blind visual field. The intervention includes about five weekly sessions of 20 minutes each. Participants undergo baseline assessments and are evaluated one week after the biofeedback sessions. Assessments include visual acuity, fixation stability, retinal sensitivity, reading speed, near vision, quality of life questionnaires, stereopsis, and contrast sensitivity. The study monitors how BT affects oculomotor control and vision-related quality of life, with a focus on improving patients' ability to navigate and read despite their visual field loss.

Biofeedback for Hemianopia Vision Rehabilitation