Extraocular Motility

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  • čas přidán 26. 08. 2024
  • This is an educational video meant for ophthalmology residents in training and medical students going through their ophthalmology rotation.
    Here we have a demonstration of the extraocular movements, including the smooth pursuit movements, further divided into versions, vergences and ductions; and saccades, along with the actions of the various extraocular muscles.
    For a more detailed exploration of the topic, please refer to “Chapter 1: History and Examination” in Ophthalmology Explained by Mohammad Ali Ayaz Sadiq.

Komentáře • 2

  • @travelfreak6901
    @travelfreak6901 Před rokem +1

    Excellent 👌🏻
    but I think there is a mistake in the end that SO n IO move it towards nose and SR n IR outwards
    Just like sir said in lecs RADD recti adduct

    • @ophthalmologywithmas
      @ophthalmologywithmas  Před rokem +3

      Thank you.
      This is a bit confusing concept. Let me try to explain.
      Recti have a secondary action of adduction, while obliques have a tertiary action of abduction.
      This is separate from the field of gaze in which their elevation/depression actions are maximum (the maximum effect is when the muscle is fully stretched which would be opposite to their field of action). So When the eye is already in adduction, the obliques move it up and down (opposite to their action of ABduction causing the muscle to be fully stretched). The obliques have not brought the eye to adduction; that is simply where their vertical action is most prominent.
      Same is the case for recti muscles.