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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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Sarcoid optic neuropathy.

Pedro Fraiman1, André Lopes Valente1, Maria Eduarda Slhsessarenko Fraife Barreto1

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This summary is machine-generated.

A woman experienced sudden vision loss due to neurosarcoidosis, a rare inflammatory condition. Optic nerve biopsy confirmed non-caseating granulomas, leading to a diagnosis of this neurological disorder.

Keywords:
NEUROOPHTHALMOLOGYNEUROPATHOLOGYONCOLOGY

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Area of Science:

  • Ophthalmology
  • Neurology
  • Immunology

Background:

  • Neurosarcoidosis is a rare multisystem inflammatory disease that can affect the optic nerves.
  • Optic nerve involvement in sarcoidosis can lead to significant visual impairment.

Observation:

  • A 45-year-old woman presented with acute, severe left eye vision loss and retroorbital pain.
  • A prior episode of transient vision loss in the same eye resolved with corticosteroid treatment.

Findings:

  • Ophthalmic examination revealed a swollen optic disc and no light perception in the affected eye.
  • Brain MRI demonstrated extensive enlargement and enhancement of the left optic nerve and optic chiasm.
  • Left optic nerve biopsy confirmed non-caseating granulomas, establishing the diagnosis of neurosarcoidosis.

Implications:

  • This case highlights the importance of considering neurosarcoidosis in the differential diagnosis of optic neuropathies, especially with recurrent episodes.
  • Early diagnosis and appropriate treatment are crucial to prevent irreversible vision loss.
  • Further research into the pathogenesis and optimal management of neurosarcoidosis affecting the optic nerve is warranted.