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Grading jerk nystagmus

Authoring team

Jerk nystagmus may be graded as follows:

  • first degree nystagmus is present only when looking in the direction of the quick component

  • nystagmus is second degree if it is also present when looking straight ahead

  • third degree nystagmus is where it is present when looking in the direction of the quick component, when looking straight ahead and when looking in the direction of the slow component

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The content herein is provided for informational purposes and does not replace the need to apply professional clinical judgement when diagnosing or treating any medical condition. A licensed medical practitioner should be consulted for diagnosis and treatment of any and all medical conditions.

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