Source: wikibot/optokinetic-drum
= Optokinetic drum
{wiki=Optokinetic_drum}
An optokinetic drum is a device used in vision research and clinical settings to study visual perception and eye movements. It typically consists of a cylindrical drum or drum-like structure with patterns or images on its inner surface. The drum rotates, and as it spins, the visual stimuli appear to move in front of the observer's eyes.