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Visual Agnosia

Visual Agnosia

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...

Prosopagnosia

Prosopagnosia

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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Persistent visual deficits in minor ischemic stroke.

Humza Qureshi¹, Raj G Saraiya¹, Manisha Koneru²

¹Cooper Medical School of Rowan University, Camden, NJ, USA.

Journal of Stroke and Cerebrovascular Diseases : the Official Journal of National Stroke Association

|September 27, 2025

Summary

This summary is machine-generated.

Minor ischemic stroke (MIS) patients with persistent visual deficits (PeVD) showed higher stroke severity but not worse 90-day functional outcomes. Further research is needed to explore alternative outcome measures for PeVD in MIS.

Keywords:

Cerebrovascular disorders Functional recovery Ischemic stroke Visual disorders

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Area of Science:

Neurology
Stroke Medicine
Clinical Outcomes Research

Background:

Minor ischemic stroke (MIS) outcomes are poorly understood compared to severe strokes.
Predictors of long-term outcomes in MIS require further investigation.
The impact of persistent visual deficits (PeVD) on functional disability in MIS is not well-characterized.

Purpose of the Study:

To compare functional outcomes in MIS patients with and without PeVD.
To assess the association between PeVD and long-term functional disability after MIS.

Main Methods:

Retrospective single-center cohort study (2019-2023) of adult acute ischemic stroke patients.
MIS defined by National Institutes of Health Stroke Scale (NIHSS) score ≤5 at admission and 24 hours.
PeVD defined by a nonzero visual field NIHSS subscore at 24 hours; primary outcome was 90-day modified Rankin Scale (mRS).

Main Results:

10.4% of 1041 MIS patients had PeVD.
Patients with PeVD had higher presenting and 24-hour NIHSS scores.
PeVD was associated with higher 90-day mortality and mRS scores, but multivariable analysis indicated 24-hour NIHSS, not PeVD, predicted worse functional outcomes.

Conclusions:

A minority of MIS patients experience PeVD.
PeVD is linked to stroke severity but not independently to 90-day functional outcomes.
Alternative functional outcome measures beyond mRS should be explored for MIS patients with PeVD.