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Glaucoma: Overview

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: Treatment

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: Treatment

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: Jul 10, 2026

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

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

Published on: May 25, 2020

Glaucoma and mobility performance: the Salisbury Eye Evaluation Project.

David S Friedman¹, Ellen Freeman, Beatriz Munoz

¹Wilmer Eye Institute, Johns Hopkins University, Baltimore, Maryland, USAaryland.

|November 6, 2007

Summary

This summary is machine-generated.

Bilateral glaucoma significantly impairs mobility, causing slower walking speeds and more obstacles encountered in daily tasks. This highlights the importance of managing glaucoma for maintaining independence and safety.

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Area of Science:

Ophthalmology
Gerontology
Public Health

Background:

Glaucoma is a leading cause of irreversible blindness globally.
Mobility impairments are a significant concern for aging populations and can lead to falls and reduced quality of life.

Purpose of the Study:

To investigate the association between glaucoma and mobility performance in a population-based cohort.
To identify specific mobility deficits associated with bilateral and unilateral glaucoma.

Main Methods:

A population-based observational study involving 1250 participants.
Participants underwent mobility assessments including obstacle course navigation, stair climbing, and tandem stands.
Comparisons were made between individuals with and without glaucoma, adjusting for various demographic and health factors.

Main Results:

Individuals with bilateral glaucoma walked 2.4 m/minute slower and encountered 1.65 times more obstacles on an obstacle course compared to those without glaucoma (P<0.05).
These associations remained significant after adjusting for visual acuity, comorbidities, and mobility aid use.
No significant mobility differences were found for individuals with unilateral glaucoma.

Conclusions:

Bilateral glaucoma is associated with reduced mobility performance in community-dwelling individuals.
Visual field loss appears to be a key driver of these mobility deficits.
The findings underscore the impact of glaucoma on functional independence and the need for targeted interventions.