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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...

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Related Experiment Video

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

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Published on: May 25, 2020

New developments in Heidelberg retina tomograph for glaucoma.

Nicholas G Strouthidis1, David F Garway-Heath

  • 1Glaucoma Research Unit, Moorfields Eye Hospital and UCL Institute of Ophthalmology NIHR Biomedical Research Centre, London, UK.

Current Opinion in Ophthalmology
|February 28, 2008
PubMed
Summary

Heidelberg Retina Tomograph (HRT) software updates improve glaucoma diagnosis and monitoring. New features enhance classification accuracy and disease progression tracking, aiding patient management.

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Area of Science:

  • Ophthalmology
  • Medical Imaging
  • Glaucoma Research

Background:

  • The Heidelberg Retina Tomograph (HRT) is an established tool for optic nerve head imaging.
  • Glaucoma diagnosis and monitoring rely on accurate structural and functional assessments.

Purpose of the Study:

  • To review recent research on HRT imaging in glaucoma.
  • To assess the impact of new HRT software developments on clinical utility.

Main Methods:

  • Review of studies investigating HRT-3 software.
  • Analysis of HRT's performance in classifying glaucomatous optic neuropathy.
  • Evaluation of HRT's role in monitoring disease progression.

Main Results:

  • HRT-3 software includes updated normative databases (white and ethnic-specific).
  • Moorfields regression analysis and Glaucoma Probability Score performance are influenced by new databases.
  • HRT progression strategies complement visual field analysis, identifying distinct patient subsets.
  • Improved characterization of HRT measurement variability and repeatability methods.

Conclusions:

  • HRT is a promising tool for glaucoma monitoring, but structural and visual field changes require further elucidation.
  • Software refinements necessitate evaluation to confirm improved patient management capabilities.