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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: May 24, 2026

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

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

Published on: February 15, 2022

[Perimetric changes in advanced glaucoma].

Crenguta Ioana Feraru¹, Anca Pantalon

¹UMF "Gr.T.Popa", Spitalul Universitar "SF. SPIRIDON" Clinica I Oftalmologie, Iaşi. CRENGI@YAHOO.COM

Oftalmologia (Bucharest, Romania : 1990)

|March 21, 2012

Summary

In advanced glaucoma, perimetric changes are severe, highlighting the need for individualized visual field testing. Correlation between visual acuity and quantitative perimetric parameters is scarce.

Area of Science:

Ophthalmology
Clinical Research

Context:

Advanced glaucoma stages present significant visual field deficits.
Morpho-functional parameters are crucial for assessing glaucoma progression.

Purpose:

To evaluate perimetric aspects in advanced glaucoma stages.
To correlate these findings with morpho-functional changes.

Summary:

This retrospective study analyzed 56 eyes with advanced glaucoma, finding severe perimetric deficits in 83%.
A majority experienced general sensitivity reduction and ring scotomas.
Statistical analysis revealed scarce correlation between visual acuity and quantitative perimetric parameters (MD, PSD), and no linear correspondence with optic disc cupping (C/D ratio).

Impact:

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Emphasizes the critical role of individualized perimetric evaluation in advanced glaucoma.
Suggests that standard morpho-functional parameters may not fully capture the visual field status in severe cases.