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Related Concept Videos

Visual Agnosia01:12

Visual Agnosia

179
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...
179
Prosopagnosia01:24

Prosopagnosia

143
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...
143

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Persistent visual impairments following mild-to-moderate ischemic stroke.

Chamini Niroshika Wijesundera1,2, Sheila Gillard Crewther1,2, Tissa Wijeratne1,2,3

  • 1School of Psychology & Public Health, La Trobe University, Melbourne, VIC, Australia.

Frontiers in Ophthalmology
|June 10, 2025
PubMed
Summary
This summary is machine-generated.

Vision deficits persist months after acute ischemic stroke (AIS), impacting visual acuity in noise and visual fields. Early and ongoing vision assessments are crucial for stroke recovery and rehabilitation.

Keywords:
Melbourne rapid field-neural (MRFn)UNSW Lee-Ryan Eye-Hand Coordination Test (SLURP)acute ischemic strokeeye-hand coordinationvisionvisual acuity-in-noisevisual fieldvisuomotor function

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Area of Science:

  • Neuroscience
  • Ophthalmology
  • Neurology

Background:

  • Vision deficits are common but underassessed after acute ischemic stroke (AIS).
  • Previous research indicated significant visual function deficits in ~68% of AIS patients within days of hospitalization.
  • This study focuses on evaluating visual recovery 2-6 months post-AIS.

Purpose of the Study:

  • To evaluate the recovery of visual function in patients who experienced mild-to-moderate acute ischemic stroke (AIS).
  • To identify persistent visual deficits and their correlation with stroke characteristics and lesion location.

Main Methods:

  • Visual assessments (visual acuity, VA-in-noise, visual field, neglect, eye-hand coordination) were conducted on an iPad within the first week and 2-6 months post-AIS.
  • Outcomes were compared to 20 age-matched healthy controls.
  • Radiological confirmation of lesions and hand dominance were recorded.

Main Results:

  • Initially, 95% had normal visual acuity, but 55% showed reduced VA-in-noise. 80% had visual field defects, often unnoticed.
  • After 2-6 months, visual attention normalized, but 15% still had reduced VA-in-noise, and 35% retained visual field defects.
  • Visuomotor impairment persisted in 40% of patients, with posterior circulation and left hemisphere strokes linked to persistent deficits.

Conclusions:

  • Mild acute ischemic stroke (AIS) can lead to persistent visual and visuomotor impairments.
  • Routine and longitudinal vision assessments are essential for stroke patients to guide rehabilitation and assess driving suitability.
  • Identifying these deficits aids in optimizing recovery and functional outcomes for stroke survivors.