Ocular Motor and Gaze Evaluation Quiz
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Questions and Answers

What is the ratio used to measure the ability to track a moving target in smooth pursuit?

  • Velocity gain: ratio of target speed and eye speed (correct)
  • Phase: eyes leading or lagging target
  • Factors: age and attention; lower with age
  • Latency: time for eyes to react
  • In saccades, what does 'velocity' refer to?

  • Time for eyes to react
  • How fast eyes move to reach target (correct)
  • How well eyes refocus on target
  • Quick eye movements to refocus fovea of eye
  • Which type of nystagmus indicates a central abnormality in gaze holding?

  • Vertical nystagmus (correct)
  • Nystagmus beating toward healthy side
  • Square waves jerks present
  • Greater intensity when vision denied
  • What type of BPPV involves short bursts in the vertical canals?

    <p>Canalithiasis</p> Signup and view all the answers

    What is the primary purpose of optokinetic testing?

    <p>To assess peripheral vision abnormalities</p> Signup and view all the answers

    What is the effect of age on the velocity gain in smooth pursuit?

    <p>It decreases with age</p> Signup and view all the answers

    What effect does vision denial have on nystagmus during VOR testing?

    <p>Prevents suppression of nystagmus</p> Signup and view all the answers

    What type of nystagmus is indicative of a central abnormality in gaze holding?

    <p>Vertical nystagmus</p> Signup and view all the answers

    What factor affects the latency in saccades?

    <p>All of the above</p> Signup and view all the answers

    What is the primary purpose of optokinetic testing?

    <p>To stimulate the entire field of vision</p> Signup and view all the answers

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