The Opticokinetic Drum spins effortlessly on bearings. It's high quality construction is designed for professional use. The opticokinetic drum is often used by the Neuro-Ophthalmologist or Pediatric Ophthalmologist
to determine the presence or absence of vision in infants or patients who are unable to communicate. By observing the opticokinetic nystagmus (OKN) reflex at various r.p.m. and direction of rotation, the doctor can make an evaluation.