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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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Optic Nerve Transection: A Model of Adult Neuron Apoptosis in the Central Nervous System
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Traumatic transconjunctival orbital emphysema.

E M Stroh1, P T Finger

  • 1Department of Ophthalmology, North Shore University Hospital-Cornell University Medical College, Manhasset, New York 11030.

The British Journal of Ophthalmology
|June 1, 1990
PubMed
Summary
This summary is machine-generated.

Traumatic orbital emphysema can occur from high-pressure air entering through a conjunctival laceration. This case demonstrates orbital emphysema without an associated orbital bone fracture.

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Area of Science:

  • Ophthalmology
  • Trauma Surgery
  • Medical Imaging

Background:

  • Orbital emphysema is a rare condition characterized by the presence of air within the orbital tissues.
  • It can result from barotrauma, often associated with facial or orbital trauma.
  • High-pressure air can potentially enter the orbit through various routes.

Observation:

  • An industrial accident resulted in an 8 mm conjunctival laceration in the superior fornix.
  • This laceration served as the entry point for air into the subconjunctival, subcutaneous, and retrobulbar spaces.
  • Computed tomography (CT) was utilized for detailed imaging of the orbital structures.

Findings:

  • CT scans revealed no evidence of orbital fracture.
  • The imaging confirmed the presence of traumatic orbital emphysema.
  • The findings indicated that orbital emphysema occurred in the absence of any broken orbital bone.

Implications:

  • This case highlights a unique mechanism of orbital emphysema via trans-conjunctival air migration.
  • It underscores the importance of considering orbital emphysema even without obvious facial bone fractures.
  • Accurate diagnosis through imaging like CT is crucial for appropriate management of orbital trauma.