Orbital fascia

Orbital fascia is a term used in anatomy to refer to the connective tissue that surrounds the eye socket or orbit. This tissue plays a crucial role in the structure and function of the eye and its surrounding structures.

Etymology

The term "orbital fascia" is derived from the Latin "orbitalis," meaning "pertaining to the orbit," and "fascia," meaning "band." The term thus refers to the band of tissue that surrounds the orbit.

Structure

The orbital fascia is a thin, fibrous membrane that envelops the orbit and the structures within it. It is continuous with the periosteum of the bones of the orbit, and it extends to the eyelids where it becomes the tarsal plates. The orbital fascia is divided into two layers: the superficial layer, which is attached to the periosteum, and the deep layer, which is attached to the structures within the orbit.

Function

The primary function of the orbital fascia is to provide a protective barrier for the structures within the orbit. It also helps to maintain the shape and position of the eye within the orbit. Additionally, the orbital fascia plays a role in the movement of the eye, as it provides a smooth surface for the muscles of the eye to move against.

Clinical significance

Damage to the orbital fascia can result in a variety of conditions, including orbital cellulitis, orbital abscess, and orbital pseudotumor. These conditions can cause symptoms such as pain, swelling, and vision changes, and they require medical attention.

See also

• Orbit (anatomy)
• Fascia
• Eye socket

References

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