OptoKinetic Drum

Optokinetic Drum is a simple, focused tool for peripheral vision and eye-movement training.

DRUM MODE
Watch a full-screen moving visual pattern fill your peripheral vision while you keep your eyes fixed on the center dot — the classic optokinetic stimulus used to engage involuntary eye-tracking reflexes. Choose from striped, radial, dotted, or animal-emoji patterns, with adjustable speed, density, and color themes.

DRILL MODE
Sharpen your peripheral awareness and reaction time. A small target briefly flashes near the edge of your screen — without looking away from the center dot, spot it and respond as fast as you can. Hits, misses, false responses, and reaction time are tracked live.

ANIMAL COUNTING
In the animal-emoji pattern, pick an animal to silently count as it drifts through your peripheral vision — a simple way to test sustained peripheral attention.

SIMPLE GESTURE CONTROLS
Swipe up/down to change patterns, swipe left/right to change colors, tap either screen edge to adjust speed, and double-tap the center to start or pause.

FREE TO START
Stripe patterns, the fixation point, and speed/density controls are free. A one-time Pro unlock adds Drill Mode, every pattern (radial, dots, animal counting), and all color themes.

IMPORTANT: Moving visual patterns can cause discomfort for people with vestibular conditions, migraine, or photosensitive epilepsy. This app is a self-directed training tool for personal use — it is not a medical device and not a substitute for professional vision therapy. Stop immediately if you feel any discomfort.