The correct order for the layers of the upper eyelid from anterior to posterior is:

The correct order for the layers of the upper eyelid from anterior to posterior is:
  1. skin, orbicularis, levator aponeurosis, septum, mullers muscle, fat, conjunctiva
  2. skin, septum, orbicularis, levator aponeurosis, mullers muscle, conjunctiva, fat
  3. skin, fat, orbicularis, septum, levator aponeurosis, mullers muscle, conjunctiva
  4. skin, orbicularis, septum, fat, levator aponeurosis, mullers muscle, conjunctiva

Correct Answer: skin, orbicularis, septum, fat, levator aponeurosis, mullers muscle, conjunctiva

The skin of the eyelid is the thinnest in the body. There is no subcutaneous fat beneath. The orbicularis muscle lies directly beneath the skin and is tightly adherent to it. The orbital septum is the gateway to the orbit. It holds the preaponeurotic fat back. Directly beneath the preaponeurotic fat is the levator aponeurosis. Beneath is Mullers muscle and conjunctiva.

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