Orbital septum

Orbital Septum

The Orbital Septum is a significant anatomical structure in the human eye. It is a thin, fibrous membrane that extends from the orbital rim to the eyelids. The orbital septum serves as a barrier, separating the contents of the orbit from the external environment.

Anatomy

The orbital septum originates from the periosteum of the orbital rim. It extends anteriorly and inserts into the tarsal plates of the upper and lower eyelids. The septum acts as a physical barrier, preventing the spread of infections or inflammations from the face and eyelids into the orbit.

Clinical Significance

The orbital septum has significant clinical implications. It plays a crucial role in conditions such as preseptal cellulitis and orbital cellulitis. These conditions are differentiated based on whether the infection is anterior (preseptal) or posterior (orbital) to the septum.

See Also

• Orbit (anatomy)
• Eyelid
• Preseptal cellulitis
• Orbital cellulitis

References

Orbital septum Resources
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