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Related Experiment Video

Updated: Sep 13, 2025

Assessing Binocular Central Visual Field and Binocular Eye Movements in a Dichoptic Viewing Condition
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Visual field defects in dementia: A scoping review.

Jack Phu1,2,3,4, Henrietta Wang1,2

  • 1School of Optometry and Vision Science, University of New South Wales, Kensington, New South Wales, Australia.

Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)
|July 27, 2025
PubMed
Summary

Individuals with dementia exhibit poorer visual field test results and reliability compared to those without dementia. This suggests potential for using visual field testing as a marker for cognitive impairment.

Keywords:
Alzheimer'sperimetryposterior cortical atrophyreliabilitystandard automated perimetryvisual fields

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Area of Science:

  • Ophthalmology
  • Neurology
  • Neuroscience

Background:

  • Dementia is a neurodegenerative disease impacting cognitive function.
  • Standard automated perimetry (SAP) assesses visual field function.
  • The relationship between dementia and SAP results requires systematic evaluation.

Purpose of the Study:

  • To systematically review and meta-analyze the literature on dementia and standard automated perimetry (SAP) results.
  • To compare visual field sensitivity, global indices, defect patterns, and reliability between individuals with and without dementia.

Main Methods:

  • A scoping review and meta-analysis were conducted.
  • Four databases were searched for studies comparing SAP results in dementia cases and controls.
  • Standardized mean differences and confidence intervals were calculated for quantitative data.

Main Results:

  • Individuals with dementia showed significantly worse results in mean deviation and pattern standard deviation.
  • Higher rates of fixation loss, false positives, and false negatives were observed in the dementia group.
  • Hemianopias and quadrantanopias were common visual field defects, with left-sided defects more prevalent.

Conclusions:

  • Patients with dementia demonstrate impaired visual function and reduced test reliability compared to controls.
  • Poor test reliability and inattention patterns in visual fields may serve as surrogate markers for cognitive impairment.
  • Further research is needed to explore the quantitative relationship between cognitive function and visual field evaluation.