Introduction

EyeTrainer brings evidence-based vision therapy exercises into visionOS with precise per-eye control, real 3D objects, and custom exercise paths you draw yourself.

8 Built-in Exercises

Each exercise targets a different aspect of visual function, from smooth pursuit tracking to rapid-fire saccades and depth convergence.

What Makes It Different

• True dichoptic control. Independently set color, brightness, contrast, and visibility for each eye using hardware-level ShaderGraphMaterial rendering, the same technique used in clinical vision therapy.
• Draw your own paths. Pinch and drag in space to create any movement pattern. Paths are recorded and smoothed with Catmull-Rom splines, then saved as custom exercises.
• A real 3D object. The training ball is a RealityKit entity you can physically grab and reposition anywhere in your room, not a flat UI element.
• Fixation overlays. An X marker on the ball helps anchor fixation, matching techniques used in formal vision therapy programs.
• Fully adjustable. Speed, range, ball size, distance, lighting presets, and session timer are all configurable per-session or saved as named presets.
• Evidence-based design. Exercise parameters and patterns are drawn from published vision therapy and perceptual learning research.

Who It's For

• People managing amblyopia (lazy eye) who want structured home training
• Those with convergence insufficiency looking to build stamina between appointments
• Anyone experiencing eye strain from screens or extended reading
• Athletes looking to sharpen visual tracking and reaction speed
• Patients working with a vision therapist who want a consistent home practice tool