Ocular muscles

Ocular muscles of the human eye vision system.

This short video demonstrates how the eye muscles work together to move the eye. Get my new (May 2013) interactive book on your iPad, http://itun.es/i6xT3Yf …

Ocular muscles and the actions of the eyes

Ocular muscles of the human eye vision system are fascinating to study, here is a short animated video with the actions of the ocular muscles moving the eyes. Watch this short video prepared and presented to you on the YouTube channel.

Ocular muscles
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Actions of the eyes by the ocular muscles

There are four muscles per eye that move the eyes up and down, and side to side.
Names of three muscles are:

  • Medial rectus.
  • Inferior Oblique
  • Superior Oblique
  • Lateral Rectus
  • Superior Rectus
  • Inferior Rectus.

Ocular muscles do need a special attention to make sure they line up the eyes accurately, if one eye is just slightly out of line the result will be a blurred vision or double vision. The ocular muscles need to line up both eye precisely on the focused object so that the visible object is seen as one singular object. Learn more on how to take care of your eye vision for life, visit this link now.

Ocular muscles contraction and relaxation

Four of the ocular muscles control the movement of the eye in the four cardinal directions: up, down, left and right. Ocular muscles contract and the opposite side muscles relax at the same time, enabling a synchronization of the eye movement. See video for clear presentation of the eye movements.

Essential nutrients for the eye vision

Essential nutrients are necessary for a healthy eye vision, similar all other biological systems of the human body they need a constant supply of life-giving nutrients.  Essential nutrients for the eye vision are also manufactured into a supplement form. health eating habits ensure that the body receives all of the necessary nutrients that all of the eleven biological organ systems need.

36 thoughts on “Ocular muscles”

  1. When the eyes are adducted, the inferior oblique muscle is responsible for
    elevation? I don’t quite understand the intuition behind this anatomy.. 

  2. This is amazing work. The animations are perfect, your explanation is
    clear, eloquent and succinct. Massive respect to you and your work. Thank
    you.

  3. Sir- Im a little confused with the last diagram. From my understanding, the
    inferior oblique muscle kicks in during the abducted phase of the eye. In
    other words, when the lateral rectus abducts the eye, elevation occurs
    because the inferior oblique contracts and not the superior rectus.
    However, this diagram shows that when the medial rectus contracts
    (adduction) the inferior oblique elevates the eye. Could you perhaps
    clarify this. Thanks.

  4. Your diagram is misleading, in that the SO and IO are shown medially
    (between the two eyes) – SO and IO also partially abduct the eye, in
    isolation and in clinical testing are always drawn outwards for the
    classical ‘H’ testing of EOM. Other than that, cool video.

  5. The last picture is 100% right, but I need a way to better explain it. I’m
    discussing the labelled diagram at the end. This shows you how to remember
    the MAIN ACTIONS of the muscles. Medial and lateral rectus pull the eye in
    and out, so there is no confusion there. With the eye already abducted,
    sup. rectus elevates, inf. rectus depresses the eye. With the eye adducted,
    inferior oblique elevates and sup oblique depresses. Read the transcript,
    or read my ibook…(will be in iBookstore soon)

  6. @poobah42o no, your statement disagrees with what the video says. stapsell
    is correct that the SR and IR elevate and depress the eye, respectively,
    when the eye is ABducted, not ADdcuted (1:58). he is using a right eye in
    his example.

  7. @poobah42o Video IS CORRECT according to the Thieme “Nervous System and
    Sensory organs”. At 23 degree ABduction: SR act as elevator and IR act as
    despressor of the eye. At maximal ADduction (up to 50 degree): SO act as a
    depressor and IO act as an levator of the eye.

  8. Enjoyed the animation but I do have one suggestion and that is should u
    choose to make more videos, try speaking a bit more slowly and use more
    time to explain. overall great vid!! thanks

  9. @boonshofter Woah, you must be hella stressed out to be blowing up on a
    mere youtube comment like that. Remember to breathe. Youtube is not a
    trusted source for anything anyway – it’s more entertainment.

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