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Related Concept Videos

Visual Agnosia01:12

Visual Agnosia

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Visual agnosia is a condition characterized by the inability to recognize visually presented objects despite having normal vision. For instance, a person with visual agnosia can describe the shape and color of an object but cannot identify or name it. This impairment does not affect their visual field, acuity, color vision, brightness discrimination, language, or memory. An example of this condition in a social setting is someone at a dinner party asking for "that silver thing with a round...
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Prosopagnosia01:24

Prosopagnosia

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Prosopagnosia, also known as face blindness, is the inability to recognize faces. In severe cases, individuals with prosopagnosia may not recognize close family members, including parents and spouses, by their faces. For instance, someone with prosopagnosia might walk past their child in a crowd, only realizing their mistake upon noticing their child's distinctive backpack or favorite jacket. Prosopagnosia specifically impairs facial recognition, while the recognition of other objects or...
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Angle Closure Glaucoma: Treatment01:28

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: Dec 18, 2025

Comparison of Three Clinical Stereoscopic Methods for Measuring Binocular Visual Function During Amblyopic Treatment in Unilateral Amblyopia
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Comparison of Three Clinical Stereoscopic Methods for Measuring Binocular Visual Function During Amblyopic Treatment in Unilateral Amblyopia

Published on: September 27, 2024

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Monocular hemianopia secondary to stroke.

Samuel K Lee1, Yao Wang1, Laura B Asplund2

  • 1Department of Ophthalmology and Visual Neurosciences, University of Minnesota, Minneapolis, MN, USA.

American Journal of Ophthalmology Case Reports
|June 11, 2020
PubMed
Summary

This study reports three stroke patients with monocular hemianopia on automated static perimetry, a rare visual field defect. This finding may indicate a unique feature of automated perimetry testing.

Keywords:
HemianopiaHemianopsiaMonocularRetrochiasmalUnilateralVisual field

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Area of Science:

  • Neuroscience
  • Ophthalmology
  • Neurology

Background:

  • Homonymous hemianopic defects typically indicate retrochiasmal visual pathway damage.
  • Monocular visual field defects usually localize to structures at or anterior to the optic chiasm.

Observation:

  • This study reviewed three patients who experienced cerebral stroke.
  • Automated static perimetry revealed a normal visual field in one eye and a monocular hemianopia in the other.

Findings:

  • This is the first reported instance of monocular hemianopia following a cerebral stroke.
  • The observed visual field defect pattern may be specific to automated perimetry techniques.

Implications:

  • The findings suggest that monocular hemianopia on automated perimetry after stroke warrants further investigation.
  • Brain magnetic resonance imaging (MRI) may be beneficial for patients presenting with this specific visual field loss pattern.