Source:http://linkedlifedata.com/resource/umls/id/C0182051
SPN: An optokinetic drum is a drum-like device covered with alternating white and dark stripes or pictures that can be rotated on its handle. The device is intended to elicit and evaluate nystagmus (involuntary rapid movement of the eyeball) in patients.,UMD: Diagnostic ophthalmic devices designed to elicit and evaluate the regular, involuntary movement of the eyeball (i.e., nystagmus). The devices are typically drum-like cylinders covered with uniform white and dark vertical stripes with a handle. The rotation of the devices can induce optokinetic nystagmus, and then the examiner observes the patient's abnormal eye responses. Optokinetic drums are used to diagnose a variety of visual problems.