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[Normal tension glaucoma].

Ivan Maynart Tavares1, Paulo Augusto de Arruda Mello

  • 1Departamento de Oftalmologia, Universidade Federal de São Paulo, São Paulo, SP. imaynart@oftalmo.epm.br

Arquivos Brasileiros De Oftalmologia
|December 3, 2005
PubMed
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Normal tension glaucoma, an optic neuropathy, presents with nerve damage and vision loss despite normal eye pressure. This review explores its complex causes and challenging treatment options.

Area of Science:

  • Ophthalmology
  • Neurology

Context:

  • Normal tension glaucoma (NTG) is characterized by optic nerve damage and visual field defects with normal intraocular pressure.
  • NTG patients are a heterogeneous group with potential systemic conditions, complicating early diagnosis.
  • Ocular clinical signs in early NTG stages can be subtle and difficult to identify.

Purpose:

  • To review the pathophysiology and differential diagnosis of normal tension glaucoma.
  • To assess the vascular, rheumatic, neurological, and genetic aspects relevant to NTG.
  • To discuss the treatment challenges associated with NTG.

Summary:

  • Normal tension glaucoma involves retinal nerve fiber layer thinning, optic nerve excavation, and visual field disturbances without elevated intraocular pressure.
  • Systemic conditions and subtle early signs contribute to diagnostic and therapeutic complexities in NTG.

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  • This review synthesizes current knowledge on NTG's multifaceted nature, from underlying pathologies to treatment strategies.

    • Impact:

    • Provides a comprehensive overview for clinicians managing normal tension glaucoma.
    • Highlights the importance of considering systemic factors in NTG diagnosis and treatment.
    • Aims to improve the understanding and management of this challenging optic neuropathy.