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Glaucoma: Overview

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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...

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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.
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Angle Closure Glaucoma: Treatment

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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: Feb 13, 2026

Assessing the Coherence of Parents' Short Narratives Regarding their Child Using the Five-Minute Speech Sample Procedure

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Published on: September 19, 2019

Mucogenic glaucoma in a child.

Ta C Chang¹, Linda Y Huang^1,2, Kara M Cavuoto¹

¹Bascom Palmer Eye Institute, University of Miami Millers School of Medicine, Miami, FL, United States.

American Journal of Ophthalmology Case Reports

|March 6, 2018

Summary

This summary is machine-generated.

A congenital iris stromal cyst caused secondary glaucoma in a 4-year-old. Surgical removal of the mucin-producing cyst resolved the pediatric glaucoma, marking the first reported case of mucogenic glaucoma in a child.

Keywords:

Childhood glaucoma Congenital iris stromal cyst Goblet cells Mucin Mucogenic

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Area of Science:

Ophthalmology
Pediatric Ophthalmology

Background:

Congenital iris stromal cysts are rare ocular anomalies.
Secondary glaucoma can arise from various intraocular conditions.

Observation:

A 4-year-old presented with acute eye pain, redness, and elevated intraocular pressure (IOP).
Ultrasound biomicroscopy identified mucoid material within the anterior chamber, suggestive of a mucin-producing cyst.
The patient had a history of unilateral congenital iris stromal cyst.

Findings:

The elevated IOP and optic nerve damage were attributed to mucin accumulation from the iris cyst.
Pathologic examination confirmed a mucin-secreting iris cyst lined with goblet cells.
Surgical excision of the cyst led to spontaneous normalization of IOP.

Implications:

This case represents the first report of mucogenic glaucoma in a pediatric patient.
Mucogenic glaucoma should be considered in the differential diagnosis of childhood glaucoma with nonacquired ocular anomalies.
Surgical excision of the causative iris cyst can be a curative treatment for this rare condition.