| nystagmus, optokinetic | The normal or physiological nystagmus induced by the attempt to fixate objects moving rapidly across the field of vision. It occurs, for example, when viewing objects from a moving railroad car or automobile. It is also called railroad nystagmus. (12 Dec 1998) |
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| optokinetic | See: optokinetic nystagmus. Origin: opto-+ G. Kinesis, movement (05 Mar 2000) |
| optokinetic nystagmus | Nystagmus induced by looking at moving visual stimuli. Synonym: opticokinetic nystagmus, railroad nystagmus. (05 Mar 2000) |