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Related Concept Videos

Glaucoma: Overview01:25

Glaucoma: Overview

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...
Open Angle Glaucoma: Treatment01:27

Open Angle Glaucoma: Treatment

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.
Drugs such as carbonic anhydrase inhibitors, α2- and...
Angle Closure Glaucoma: Treatment01:28

Angle Closure Glaucoma: Treatment

Angle-closure glaucoma, or closed-angle glaucoma, is an eye condition where the iris bulges out and blocks the iridocorneal angle, resulting in a buildup of aqueous humor and increased intraocular pressure. Immediate medical attention is necessary due to the sudden onset of symptoms. The treatment for angle-closure glaucoma includes short-term and long-term approaches. Short-term treatment involves using eye drops like pilocarpine to lower intraocular pressure by increasing aqueous humor...

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Related Experiment Video

Updated: May 28, 2026

Assessing Early Stage Open-Angle Glaucoma in Patients by Isolated-Check Visual Evoked Potential
07:11

Assessing Early Stage Open-Angle Glaucoma in Patients by Isolated-Check Visual Evoked Potential

Published on: May 25, 2020

Visual field progression outcomes in glaucoma subtypes.

Carlos Gustavo De Moraes1, Jeffrey M Liebmann, Craig A Liebmann

  • 1Einhorn Clinical Research Center, New York Eye and Ear Infirmary, New York, NY, USA. demoraesmd@gmail.com

Acta Ophthalmologica
|October 7, 2011
PubMed
Summary
This summary is machine-generated.

Glaucoma subtype does not independently predict visual field progression. Known risk factors, not the specific type of glaucoma, are key to understanding disease advancement.

Related Experiment Videos

Last Updated: May 28, 2026

Assessing Early Stage Open-Angle Glaucoma in Patients by Isolated-Check Visual Evoked Potential
07:11

Assessing Early Stage Open-Angle Glaucoma in Patients by Isolated-Check Visual Evoked Potential

Published on: May 25, 2020

Area of Science:

  • Ophthalmology
  • Glaucoma Research
  • Visual Field Analysis

Background:

  • Glaucoma is a leading cause of irreversible blindness.
  • Understanding factors influencing visual field (VF) progression is crucial for patient management.
  • Different glaucoma subtypes exhibit distinct clinical and epidemiological characteristics.

Purpose of the Study:

  • To investigate if glaucoma subtype is an independent predictor of visual field progression.
  • To analyze the impact of various glaucoma phenotypes on the rate of VF decline.

Main Methods:

  • Retrospective chart review of 841 glaucoma patients and suspects (1999-2009).
  • Automated pointwise linear regression analysis to determine VF change rates.
  • Progression defined by decline in test locations at ≥1.0 dB/year (p < 0.01).

Main Results:

  • Exfoliative glaucoma showed the fastest global VF change and highest progression rates.
  • Normal-tension glaucoma eyes presented with specific optic disc features.
  • After adjusting for covariates, no significant difference in VF progression rates or endpoint risk was found among glaucoma subtypes.

Conclusions:

  • Glaucoma phenotype is not an independent risk factor for visual field progression.
  • Established risk factors, rather than specific glaucoma types, are critical for predicting disease progression.
  • This finding emphasizes the importance of monitoring known risk factors in all glaucoma patients.