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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...
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...
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...
Photoreceptors and Visual Pathways01:22

Photoreceptors and Visual Pathways

At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category, whereas...

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Related Experiment Video

Updated: Jun 2, 2026

Full-Circle Cauterization of Limbal Vascular Plexus for Surgically Induced Glaucoma in Rodents
10:10

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

Published on: February 15, 2022

[Cornea in glaucoma].

C Stefan1, Inga Cojocaru, Adina Pop

  • 1Spitalul Universitar de Urgenţă Militar Central Bucureşti.

Oftalmologia (Bucharest, Romania : 1990)
|April 27, 2011
PubMed
Summary
This summary is machine-generated.

This study tracked corneal endothelial cell density in glaucoma patients with varying intraocular pressure (IOP) levels. Results show how IOP affects endothelial cell health in primary open-angle glaucoma (POAG) patients.

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Last Updated: Jun 2, 2026

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Area of Science:

  • Ophthalmology
  • Cell Biology

Background:

  • Primary open-angle glaucoma (POAG) is a leading cause of irreversible blindness.
  • Intraocular pressure (IOP) is a primary risk factor for glaucoma progression.
  • Corneal endothelial cells are crucial for maintaining corneal clarity and function.

Purpose of the Study:

  • To investigate the impact of different intraocular pressure (IOP) levels on corneal endothelial cell density in POAG patients.
  • To observe changes in corneal endothelial cell density under compensated, undercompensated, and decompensated IOP conditions.

Main Methods:

  • Observational, retrospective, randomized clinical study.
  • Involved 84 eyes of patients with POAG.
  • Monitored corneal endothelial cell density over a specific period (06.01-01.05.2010).

Main Results:

  • Corneal endothelial cell density changes were observed in relation to IOP status.
  • The study provides data on the relationship between IOP control and endothelial cell health in glaucoma.

Conclusions:

  • IOP management is critical for preserving corneal endothelial cell health in POAG.
  • Understanding these changes can inform glaucoma treatment strategies and patient management.