OKN Drum Pro

OKN Drum Pro provides an adjustable optokinetic nystagmus drum for professional education, teaching and research. CONTROL THE STIMULUS • Adjust movement speed and choose any of four directions. • Pinch to change stripe size and swipe to move the pattern. • Use black stripes, red stripes or a custom stripe color. • Choose shapes, animals, dinosaurs and dogs, or create a custom set from four of your own images. RECORD AND REVIEW EYE MOVEMENTS • Use the optional front camera to estimate viewing distance from iris size. • Record the eye view alongside the moving stimulus and an eye-movement graph. • Review horizontal and vertical traces, select the analysis interval and compare the two eyes. • See estimated quick and slow phases, slow-phase velocity, beat frequency and stimulus gain when sufficient tracking data is available. • Export eye-movement data and analysis summaries as CSV files through Android's Share menu. KEEP TIME Use the metronome with an adjustable tempo while presenting the stimulus. The app supports Android phones and tablets, with controls designed for touch input. CAMERA AND PRIVACY Camera use is optional; the drum works without camera access. Image processing and eye analysis take place on your device. Recorded videos are saved to your media library, and you choose whether to share exports. Recording does not capture microphone audio. Google ML Kit sends technical SDK diagnostics and usage metrics to Google; it does not send your images or eye-analysis results. Privacy policy: https://mycallbag.com/okn-privacy-android.html Support: [email protected] For professional education and research. Measurements are estimates and are not a diagnosis or a substitute for a clinical examination. This app is not intended to diagnose, cure, mitigate, treat or prevent disease. Consult a qualified healthcare professional for medical decisions.

Rebuilt for Android 16 (API 36) with the updated standalone OKN tools: • Front-camera eye recording and iris-based viewing distance • Eye-movement graphs, analysis and CSV exports • Custom image sets and stripe colors • Adjustable metronome and updated phone/tablet controls