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Related Concept Videos

Glaucoma: Overview01:25

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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: Treatment01:28

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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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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,...
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Related Experiment Video

Updated: Apr 27, 2026

Assessing Early Stage Open-Angle Glaucoma in Patients by Isolated-Check Visual Evoked Potential
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Pediatric glaucoma suspects.

Karanjit Kooner1, Matthew Harrison1, Zohra Prasla1

  • 1Department of Ophthalmology, University of Texas Southwestern Medical Center, Dallas, TX, USA.

Clinical Ophthalmology (Auckland, N.Z.)
|June 27, 2014
PubMed
Summary
This summary is machine-generated.

Pediatric glaucoma suspects in Texas often present with suspicious optic discs and elevated intraocular pressure (IOP). While most require observation, long-term follow-up is crucial for these glaucoma suspects.

Keywords:
childhood glaucoma suspectsintraocular pressuresuspicious optic disc

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Area of Science:

  • Ophthalmology
  • Pediatric Ophthalmology
  • Glaucoma Research

Background:

  • Pediatric glaucoma is a significant cause of vision loss in children.
  • Identifying risk factors and demographic features of pediatric glaucoma suspects is essential for early detection and intervention.
  • Understanding the prevalence of glaucoma suspects in diverse populations aids in targeted screening and management strategies.

Purpose of the Study:

  • To characterize the demographic and ocular findings of pediatric glaucoma suspects in an ethnically diverse North Central Texas population.
  • To identify common risk factors associated with suspected pediatric glaucoma.
  • To provide data that can inform clinical practice and future research in pediatric glaucoma.

Main Methods:

  • Retrospective cross-sectional chart review of 75 pediatric glaucoma suspects.
  • Data collection included race, sex, age, intraocular pressure (IOP), cup-to-disc (C/D) ratio, family history, and glaucoma-related syndromes.
  • Exclusion criteria included incomplete patient records.

Main Results:

  • The study included 75 pediatric glaucoma suspects (136 eyes) with diverse ethnic backgrounds: 37.3% Hispanic, 26.6% African American, 26.6% Caucasian, and 9.3% Asian.
  • Common risk factors identified were suspicious optic discs (76%), elevated IOP (33.3%), and family history of glaucoma (17.3%).
  • African American, Hispanic, and Asian patients exhibited significantly greater C/D ratios compared to Caucasian patients (P<0.05).

Conclusions:

  • Approximately 33.7% of patients in the glaucoma clinic were identified as glaucoma suspects.
  • Suspicious optic discs, elevated IOP, and family history were the most frequent risk factors.
  • The majority of pediatric glaucoma suspects required only close monitoring, but long-term follow-up is necessary to ascertain glaucoma development.