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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

Updated: Jun 25, 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

Reading Performance and Eye Movement Patterns in Glaucoma.

Mariana Chiba Ikeda1, André M V Messias2, Sérgio H Teixeira1

  • 1Department of Ophthalmology and Visual Science, Glaucoma Service, Federal University of São Paulo.

Journal of Glaucoma
|June 23, 2026
PubMed
Summary
This summary is machine-generated.

Glaucoma patients show reduced reading speed due to more frequent eye saccades and fixations compared to healthy individuals. This study utilized eye-tracking to assess reading performance in glaucoma patients.

Keywords:
eye trackerfixationglaucomareading speedsaccade

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Area of Science:

  • Ophthalmology
  • Neuroscience
  • Human Factors

Background:

  • Glaucoma is a leading cause of irreversible blindness.
  • Reading performance deficits may impact daily life for glaucoma patients.
  • Eye-tracking offers objective measures of reading behavior.

Purpose of the Study:

  • To compare reading performance in glaucoma patients versus controls using eye-tracking.
  • To investigate the influence of contrast sensitivity and cognition on reading in glaucoma.

Main Methods:

  • Cross-sectional study with 111 participants (57 glaucoma, 54 controls).
  • Eye-tracking measured saccades and fixations during reading (Minnesota Low Vision Reading Test).
  • Cognition (Montreal Cognitive Assessment) and contrast sensitivity were assessed.

Main Results:

  • Glaucoma patients exhibited significantly slower reading speeds.
  • Patients with glaucoma made more saccades and fixations than controls.
  • No significant difference in cognitive function between groups.

Conclusions:

  • Glaucoma negatively impacts reading performance, independent of age and education.
  • Eye-tracking reveals specific oculomotor differences in glaucoma patients during reading.
  • Reading impairments in glaucoma warrant further investigation and potential interventions.