Clinical Management in Orthoptics
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Questions and Answers

Which cranial nerves are paralyzed in Mobius syndrome?

  • 9th and 10th cranial nerves
  • 6th and 7th cranial nerves (correct)
  • 3rd and 4th cranial nerves
  • 5th and 8th cranial nerves
  • What does large positive angle kappa typically suggest regarding ocular deviation?

  • Esotropia deviation
  • Hypertropia deviation
  • Exotropia deviation (correct)
  • None of the above
  • In the case of left superior oblique palsy, maximum diplopia occurs in which gaze?

  • Downward gaze (correct)
  • Upward gaze
  • Right gaze
  • Left gaze
  • Which of the following tests is specifically used to assess microtropia?

    <p>4 prism base out test</p> Signup and view all the answers

    What is the definition of anisophoria?

    <p>Difference in pupil size</p> Signup and view all the answers

    Study Notes

    Clinical Management in Orthoptics

    • Ice Pack Test: Differentiates between ocular myasthenia and ocular myopathy.
    • Paralytic Squint: Involves secondary deviation being less than primary deviation.
    • Angle Kappa: Large positive angle kappa appears as exotropia deviation.
    • Superior Oblique Palsy: Characterized by head positions such as chin up, face turn, and head tilt to the left.
    • Diplopia in Superior Oblique Palsy: Maximum diplopia occurs in down gaze when affected by left superior oblique palsy.
    • Anisophoria: Defined as the difference in size between the pupils.
    • Mobius Syndrome: Results from the paralysis of the 6th and 7th cranial nerves.
    • Botulinum Toxin: Utilized for pharmacological correction in patients with paralytic squint.
    • V Pattern esotropia: Identified when a patient exhibits 25 prism dioptre esotropia in upgaze and 10 prism dioptre in down-gaze.
    • Congenital Nystagmus: Notable for central scotoma and peripheral fusion, indicating its characteristic features.

    True or False Statements

    • Contralateral Synergist: For right inferior rectus, the synergist is right superior oblique. (True)
    • Base Out Prism: Used incorrectly for adduction exercises. (False)
    • External Ophthalmoplegia: Not solely caused by the paralysis of lateral rectus. (False)
    • Bifocals: Prescribed to treat amblyopia with eccentric fixation. (True)
    • 4 Prism Base Out Test: Specifically used for detecting microtropia. (True)
    • Harmonious Anomalous Retinal Correspondence (ARC): The angle of anomaly matches the subjective angle of deviation. (True)
    • Type II Duane Retraction Syndrome (DRS): Incorrectly mentions that paradoxical innervation goes to lateral rectus. (False)

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    Description

    This quiz covers key concepts in clinical management related to orthoptics, focusing on various tests and conditions like ocular myasthenia and superior oblique palsy. You'll explore the implications of techniques such as the Ice Pack Test and the use of Botulinum Toxin for treatment. Enhance your understanding of visual disorders through targeted questions.

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