Procedure

1. Configuration: 
   
1. Before beginning the exercise, set up the application's configuration options:
   
2. Adjust the brushstroke size and color
3. Enable a visual marker or highlight that surrounds the brush to make it more prominent and easily distinguishable within the projection area.
   
2. Therapist-Directed Brush Movement:
   
1. The therapist controls the movement of the brush using the trackpad. The brush movement should be slow and smooth, simulating various directions and patterns to challenge participants' visual tracking abilities.
   
3. Participant Engagement: 
1. The participants are asked to point to the brush as it moves.
2. Each participant can take turns controlling the brush movement while the others observe and track it.
   
4. Dynamic Brush Movement:
   
1. Introduce variations in the brush movement, such as zig-zag patterns, spirals, or random motions. 
   
5. Progressive Visual Field Exploration:
   
1. Begin the exercise by moving the brush in the patient's better visual side. As the exercise continues, progressively explore the other visual field areas, including the blind spots or areas with reduced vision. 
   
6. Feedback and Encouragement:
   
1. Offer positive reinforcement and constructive feedback during the exercise. Acknowledge participants' efforts and improvements in their visual tracking abilities. 
7. Adjustable Difficulty Levels:
   
1. Customize the exercise's difficulty levels based on individual patient needs. For patients with more advanced visual tracking skills, increase the speed and complexity of the brush movement. For those with challenges, slow down the brush movement and simplify the patterns initially.
   
8. Visual Field Progress Monitoring:
   
1. Monitor participants' progress in visual field exploration over multiple therapy sessions. Keep track of improvements and areas that require further attention. 
   
9. Incorporate Multi-sensory Stimulation:
   
1. Consider adding gentle sounds or auditory cues synchronized with the brush movement to provide multi-sensory stimulation. This can help reinforce the link between visual and auditory senses and enhance the overall immersive experience.
   
10. Therapist-Patient Collaboration:
    
1. Foster collaboration between the therapist and patients. Encourage open communication about the exercise´s challenges and successes, and involve patients in setting personal goals for visual field improvement.