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Updated: May 25, 2026

Measuring the Behavioral Effects of Intraocular Scatter
05:10

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Published on: February 18, 2021

Susceptibility to pattern glare following stroke.

Ian G Beasley1, Leon N Davies

  • 1Ophthalmic Research Group, Life and Health Sciences, Aston University, Birmingham B4 7ET, UK.

Journal of Neurology
|February 1, 2012
PubMed
Summary
This summary is machine-generated.

Stroke survivors show significantly higher susceptibility to pattern glare, a visual perceptual distortion. This finding suggests a link between stroke and altered visual processing, potentially due to cortical hyperexcitability.

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Area of Science:

  • Neuroscience
  • Ophthalmology
  • Perceptual Science

Background:

  • Pattern glare, a visual perceptual distortion, can be exacerbated by neurological conditions.
  • Stroke can lead to various neurological and perceptual deficits.

Purpose of the Study:

  • To quantify pattern glare susceptibility in stroke survivors.
  • To compare pattern glare levels in stroke patients versus a healthy control group.

Main Methods:

  • Utilized the pattern glare test to assess susceptibility in 20 stroke subjects and 20 age-matched controls.
  • Measured abnormal pattern glare using specific scoring criteria on spatial frequency difference variables.

Main Results:

  • Stroke subjects exhibited significantly elevated pattern glare compared to controls (mean mid-high difference: 2.15 vs. 0.10).
  • 75% of stroke patients showed abnormal pattern glare, versus only 5% in the control group.
  • A notable difference was observed in the mid-high spatial frequency difference variable.

Conclusions:

  • Stroke is associated with increased susceptibility to pattern glare.
  • Cortical hyperexcitability post-stroke may explain these perceptual distortions.
  • Further research into spectral filters for stroke patients is warranted.