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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...
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...
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...
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: May 19, 2026

Assessing Early Stage Open-Angle Glaucoma in Patients by Isolated-Check Visual Evoked Potential
07:11

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

Published on: May 25, 2020

Visual acuity outcomes in pediatric glaucomas.

Monica R Khitri1, Monte D Mills, Gui-Shuang Ying

  • 1Department of Ophthalmology, Children's Hospital of Philadelphia, Scheie Eye Institute, Philadelphia, Pennsylvania, USA. monica.ralli@gmail.com

Journal of AAPOS : the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
|August 30, 2012
PubMed
Summary

Pediatric glaucoma patients show better visual acuity prognosis than previously thought. Primary congenital glaucoma offers the best outlook, but factors like unilateral disease and multiple surgeries increase vision loss risk.

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Area of Science:

  • Ophthalmology
  • Pediatric Ophthalmology
  • Glaucoma Research

Background:

  • Pediatric glaucoma encompasses various subtypes, each with unique visual acuity prognoses.
  • Understanding risk factors for vision loss is crucial for effective management.

Purpose of the Study:

  • To compare visual acuity outcomes across pediatric glaucoma subtypes.
  • To identify risk factors associated with vision impairment in pediatric glaucoma.

Main Methods:

  • Retrospective review of 133 eyes from 88 pediatric glaucoma patients (2000-2010).
  • Analysis of visual acuities, surgical history, glaucoma subtype, and etiology of vision impairment.
  • Univariate and multivariate analyses to determine risk factors for visual impairment.

Main Results:

  • 46.6% of eyes achieved excellent visual acuity (≥20/70) at a median 5-year follow-up.
  • Primary congenital glaucoma showed the best prognosis (69.4% excellent acuity).
  • Unilateral disease, multiple surgeries, poor initial vision, and comorbidities were linked to visual impairment (<20/200). Amblyopia was the primary cause (54.9%).

Conclusions:

  • Pediatric glaucoma patients have a more favorable visual acuity prognosis than previously reported.
  • Primary congenital glaucoma demonstrates a better visual outcome compared to other subtypes.
  • Identifying risk factors aids in optimizing clinical management and patient counseling for pediatric glaucoma.