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| The
pulleys: something new in |
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| orbital anatomy and physiology. |
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| • | How
is Listing’s law accomplished? |
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| • | Extraocular
muscles have two layers |
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| · | A
global layer that inserts on the sclera |
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| · | An
orbital layer that inserts on a collagen-elastin |
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| structure
between the orbit and globe. This |
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| structure
serves as a PULLEY through which the |
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| global
layer moves the eye. |
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| • | Moving
the pulleys accomplish listings law. |
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| (Demer). |
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