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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: Jun 24, 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

[Functional glaucoma diagnosis].

C Erb1, K Göbel

  • 1Abteilung für Augenheilkunde, Schlosspark-Klinik, Berlin, Deutschland. Carl.erb@schlosspark-klinik.de

Der Ophthalmologe : Zeitschrift Der Deutschen Ophthalmologischen Gesellschaft
|April 4, 2009
PubMed
Summary
This summary is machine-generated.

Early glaucoma detection is challenging with standard achromatic perimetry. New methods aim to identify vision loss earlier by understanding retinal ganglion cell function and available devices.

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Full-Circle Cauterization of Limbal Vascular Plexus for Surgically Induced Glaucoma in Rodents
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Glaucoma-inducing Procedure in an In Vivo Rat Model and Whole-mount Retina Preparation
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Glaucoma-inducing Procedure in an In Vivo Rat Model and Whole-mount Retina Preparation

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Related Experiment Videos

Last Updated: Jun 24, 2026

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

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Full-Circle Cauterization of Limbal Vascular Plexus for Surgically Induced Glaucoma in Rodents
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Full-Circle Cauterization of Limbal Vascular Plexus for Surgically Induced Glaucoma in Rodents

Published on: February 15, 2022

Glaucoma-inducing Procedure in an In Vivo Rat Model and Whole-mount Retina Preparation
08:30

Glaucoma-inducing Procedure in an In Vivo Rat Model and Whole-mount Retina Preparation

Published on: March 12, 2016

Area of Science:

  • Ophthalmology
  • Neuroscience

Context:

  • Glaucoma diagnosis relies on achromatic perimetry.
  • Current methods detect vision loss only after significant retinal ganglion cell damage (30-40%).
  • Early detection of glaucomatous optic neuropathy is limited.

Purpose:

  • To review the theoretical basis of retinal ganglion cells.
  • To explain the principles behind novel perimetric methods.
  • To present current commercial perimetry devices.

Summary:

  • Achromatic perimetry is the standard for glaucoma but misses early functional defects.
  • New perimetric techniques are emerging for earlier scotoma detection.
  • This review covers retinal ganglion cell theory and new diagnostic tools.

Impact:

  • Facilitates understanding of early glaucoma detection mechanisms.
  • Informs clinicians about advanced perimetric technologies.
  • Aims to improve early diagnosis and management of glaucoma.