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In open-angle glaucoma, the iridocorneal angle remains open, but the trabecular meshwork becomes stiff, slowing down the outflow of aqueous humor. This causes a buildup of aqueous humor in the anterior chamber, leading to a sudden increase in intraocular pressure. The treatment for open-angle glaucoma focuses on reducing the elevated intraocular pressure by either decreasing the secretion of aqueous humor or increasing its outflow.
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Related Experiment Video

Updated: Oct 13, 2025

Dynamic Visual Tests to Identify and Quantify Visual Damage and Repair Following Demyelination in Optic Neuritis Patients
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Traumatic Optic Neuropathy Management: A Survey Assessment of Current Practice Patterns.

Colin Bacorn1, Megan V Morisada2, Raj D Dedhia3

  • 1Department of Ophthalmology and Vision Science, University of California Davis Health Eye Center, Sacramento, California.

Journal of Emergencies, Trauma, and Shock
|November 11, 2021
PubMed
Summary

Despite lacking strong evidence, most physicians treat traumatic optic neuropathy (TON) with corticosteroids, especially when vision declines. Surgical intervention is less common but favored by some specialists.

Keywords:
Blindnesscorticosteroidssurgical decompressiontraumatic optic neuropathy

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Area of Science:

  • Ophthalmology
  • Neuro-ophthalmology
  • Oculoplastics

Background:

  • Traumatic optic neuropathy (TON) management lacks evidence-based guidelines.
  • Corticosteroid use and surgical decompression are controversial treatments for TON.

Purpose of the Study:

  • To assess consensus on TON management among specialists.
  • To identify practice patterns despite literature controversy.

Main Methods:

  • Anonymous survey distributed to members of key ophthalmic societies.
  • Collected data on practice patterns for traumatic optic neuropathy management.

Main Results:

  • 60% of 165 respondents use corticosteroids; 23% opt for surgery.
  • Oculoplastic surgeons were more likely to recommend surgery than neuro-ophthalmologists.
  • Corticosteroids were preferred for declining visual acuity; observation favored for stable acuity.

Conclusions:

  • A majority favor corticosteroid treatment for progressive vision loss in TON.
  • Consensus exists on intervention despite limited high-quality evidence.
  • Specialty influences treatment approach, particularly regarding surgical intervention.