An optokinetic drum —also called a Catford drum[1] —is a rotating instrument to test vision in which individuals are seated facing the wall of the drum.

The optokinetic drum is a device consisting of a handle and a rotating drum covered with alternating vertical stripes, used to assess eye movement by eliciting jerk nystagmus as a …

Accurately test for nystagmus with these professional-grade Optokinetic Drums. Lightweight and equipped with ball bearings for an effortless spin mechanism, this drum is designed to be …

The OKN drum may be used as an estimate of visual acuity. The striped drum is equivalent to a vision of counting fingers when held at a distance of 3-5 feet from the patient. The further the …

The OKN (optokinetic) drum is used to induce nystagmus, which is a regular, repetitive involuntary movement of the eye whose direction, amplitude and frequency are variable.

Optokinetic drum: This is a simple device made up of a rotating drum with vertical lines on its sides. Looking at the rotating lines will elicit fast and slow phases of nystagmus in patients with …

In this informative video, we will introduce you to the optokinetic drum, a fascinating tool used by eye care professionals to assess vision and balance. You will learn about the mechanics of...

These professional quality Optokinetic Drums accurately test for nystagmus when rotated at 8-10 rpm. The drums feature ball bearings for an effortless spin mechanism.

OKR is typically evoked by presenting full field visual motion to a subject. The optokinetic drum is a common clinic tool used for this purpose. The drum most commonly contains sinusoidal or …

An optokinetic drum—also called catford drum—is a rotating instrument to test vision in which individuals are seated facing the wall of the drum.