Related Experiment Video
Updated: Apr 8, 2026

A Magnetic Microbead Occlusion Model to Induce Ocular Hypertension-Dependent Glaucoma in Mice
Published on: March 23, 2016
Microbead models in glaucoma
James E Morgan1, James R Tribble1
1School of Optometry and Vision Sciences, Cardiff University, Maindy Road Cardiff University, CF24 4LU Cardiff, United Kingdom.
Abstract:
The sustained and moderate elevation of intraocular pressure, which can be initiated at precise time points, remains the cornerstone of research into the mechanisms of glaucomatous retinal damage. We focus on the use of microbeads to block the outflow of aqueous following anterior chamber injection in a range of animals (mouse, rat and primate). We describe some of the most commonly used parameters and present guidance on injection technique and bead manipulation to facilitate the successful generation of experimental glaucoma.
Insights
This study details a microbead injection method to create experimental glaucoma in animals by blocking aqueous humor outflow. This technique helps researchers investigate the mechanisms of glaucomatous retinal damage.
Area of Science:
- Ophthalmology
- Neuroscience
- Animal Models
Background:
- Elevated intraocular pressure is a key factor in glaucomatous retinal damage.
- Understanding these mechanisms requires reliable experimental models.
Purpose of the Study:
- To describe a method for inducing experimental glaucoma using microbeads.
- To provide guidance on injection techniques for consistent results.
Main Methods:
- Utilizing microbeads injected into the anterior chamber of animal eyes (mouse, rat, primate).
- Blocking aqueous humor outflow to elevate intraocular pressure.
- Detailing injection parameters and bead manipulation.
Main Results:
- Successful generation of sustained and moderate elevation of intraocular pressure.
- Facilitation of experimental glaucoma in various animal models.
Conclusions:
- Microbead injection is an effective method for creating experimental glaucoma.
- This model aids in studying the mechanisms of glaucomatous retinal damage.
Related Concept Videos
Open Angle Glaucoma: Treatment
Drugs such as carbonic anhydrase inhibitors, α2- and...
Microbiome of the Eye
Glaucoma: Overview

