The Optokinetic Drum accurately tests for nystagmus when rotated at 8-10 rpm. A lightweight drum of professional quality with ball bearings for an effortless spin mechanism. Standard black and white striped drum for use 24" to 30" from the patient.
Drums are available in 2 different sizes; 10 in high by 6 in diameter (25 cm x 15 cm) and 4 in high by 6 in diameter (10 cm x 15 cm). All drum sizes have a 7 in (18 cm) handle in addition to the length of the drum.