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  2. Orbital septum - Wikipedia

    en.wikipedia.org/wiki/Orbital_septum

    The orbital septum is an important structure that separates anterior and posterior extent of the orbit. Orbital septum acts as a physical barrier that prevents the infection of the anterior part of the eye spreading posteriorly. For example, preseptal cellulitis mainly infects the eyelids, anterior to the orbital septum. Meanwhile, orbital ...

  3. Tarsus (eyelids) - Wikipedia

    en.wikipedia.org/wiki/Tarsus_(eyelids)

    The attached or orbital margins are connected to the circumference of the orbit by the orbital septum. The lateral angles are attached to the zygomatic bone by the lateral palpebral raphe. The medial angles of the two plates end at the lacrimal lake, and are attached to the frontal process of the maxilla by the medial palpebral ligament).

  4. Eyelid - Wikipedia

    en.wikipedia.org/wiki/Eyelid

    The eyelid is made up of several layers; from superficial to deep, these are: skin, subcutaneous tissue, orbicularis oculi, orbital septum and tarsal plates, and palpebral conjunctiva. The meibomian glands lie within the eyelid and secrete the lipid part of the tear film.

  5. Dermatochalasis - Wikipedia

    en.wikipedia.org/wiki/Dermatochalasis

    Weakness in the orbital septum may cause the herniation of the orbital fat pads. [3] This is observed as the presence of bulges (fat pads) in the soft tissue of the baggy eyes. [3] It can also be observed in various hereditary connective tissue disorders, including classical Ehlers-Danlos syndrome and cutis laxa.

  6. Orbital cellulitis - Wikipedia

    en.wikipedia.org/wiki/Orbital_cellulitis

    Orbital cellulitis is inflammation of eye tissues behind the orbital septum. It is most commonly caused by an acute spread of infection into the eye socket from either the adjacent sinuses or through the blood. It may also occur after trauma. When it affects the rear of the eye, it is known as retro-orbital cellulitis.

  7. Periorbital cellulitis - Wikipedia

    en.wikipedia.org/wiki/Periorbital_cellulitis

    Periorbital cellulitis, or preseptal cellulitis, is an inflammation and infection of the eyelid and portions of skin around the eye anterior to the orbital septum. [1] It may be caused by breaks in the skin around the eye, and subsequent spread to the eyelid; infection of the sinuses around the nose (); or from spread of an infection elsewhere through the blood.

  8. Levator palpebrae superioris muscle - Wikipedia

    en.wikipedia.org/wiki/Levator_palpebrae_superior...

    Superior tarsal plate and skin of upper eyelid: Artery: Muscular branches of ophthalmic artery and supraorbital artery: Nerve: Superior division of oculomotor nerve: Actions: Elevation of upper eyelid: Antagonist: Palpebral part of orbicularis oculi muscle: Identifiers; Latin: musculus levator palpebrae superioris: TA98: A15.2.07.020: TA2: 2052 ...

  9. Orbitalis muscle - Wikipedia

    en.wikipedia.org/wiki/Orbitalis_muscle

    Enophthalmos in Horner's syndrome is an illusion created by the subtle ptosis of the upper eyelid caused by paralysis of the superior tarsal muscle. [ 7 ] Sinking in of the eye (true enophthalmos ) is possibly caused by paralysis of the smooth (orbitalis) muscle in the floor of the orbit.