Optokinetic Drum (black/white strips)

Product only available to medical professionals.

Available on backorder

You must be a medical professional to purchase this product.

Optokinetic Drum, Black and White Stripes.  Drum height: 25 cm

Optokinetic Nystagmus (OKN) may be used as an objective measurement of vision in an otherwise non-responsive or malingering patient. It is useful in pediatric cases to determine the presence or absence of vision.

A positive nystagmus response consists of a slow movement of the eye while following the objects on the rotating drum, followed by a rapid recovery phase in the opposite direction.

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