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Optical perception, or vision, is an extraordinary sense dependent on converting light signals received via the ocular organs. These organs, known as eyes, are securely positioned within the bony cavities of the skull, called orbits. The orbits serve a dual purpose: a protective shield for the ocular globes and a stable attachment point for the soft ocular tissues. The eye's external protective mechanisms include the eyelids, which are edged with lashes that act as a barrier against foreign...
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Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...
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The nose is composed of an observable exterior segment (external nose) and an internal segment within the skull known as the nasal cavity (internal nose). The external nose, visible on the face, consists of a framework of bone and hyaline cartilage enveloped in skin and muscle and lined with a mucous membrane. This structure is supported by the frontal bone, nasal bones, and maxillary bone and is supplemented by a cartilaginous framework comprising the septal nasal cartilage, lateral nasal...
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Three-Dimensional Reconstruction of Orbital Fractures
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The relationship between ethmoidal foramina and orbital fat herniation.

Fatih Çankal1, Mustafa Kaya2, İbrahim Tekdemir3

  • 1Department of Anatomy, Ankara Medipol University School of Medicine, Ankara, Türkiye.

Turkish Journal of Medical Sciences
|May 30, 2024
PubMed
Summary

Orbital fat herniation occurs in 7.9% of patients, frequently in zone 3 of the medial orbital wall. This herniation is strongly associated with the anterior ethmoidal foramen, aiding surgical planning.

Keywords:
Anterior ethmoidal foramenherniationorbital fatposterior ethmoidal foramen

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Area of Science:

  • Ophthalmology
  • Anatomy
  • Radiology

Background:

  • Orbital fat tissue herniation can occur with medial orbital wall dehiscences.
  • Understanding its incidence and localization is crucial for surgical safety.

Purpose of the Study:

  • Determine the incidence and common locations of orbital fat herniation.
  • Investigate the relationship between herniations and ethmoidal foramina.

Main Methods:

  • Retrospective analysis of 1200 CT scans in patients with sinusitis.
  • Marking of ethmoidal foramina and orbital fat herniations.
  • Assessing the spatial relationship between herniations and foramina.

Main Results:

  • Orbital fat herniation incidence was 7.9%.
  • The most common herniation site was zone 3 (60 of 98 herniations).
  • A significant association was found between anterior ethmoidal foramen location and herniation sites (p < 0.001).

Conclusions:

  • Zone 3 of the medial orbital wall is the most susceptible to fat herniation.
  • Orbital fat herniations are frequently associated with the anterior ethmoidal foramen.
  • Awareness of this association can improve surgical planning and reduce orbital complications.