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Driving Simulation in the Clinic: Testing Visual Exploratory Behavior in Daily Life Activities in Patients with Visual Field Defects
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A free and simple computerized screening test for visual field defects.

Maria Nordfang1, Valdemar Uhre2,3,4, Ro Julia Robotham5

  • 1Department of Neurology, Rigshospitalet, Glostrup, Denmark.

Scandinavian Journal of Psychology
|May 28, 2019
PubMed
Summary
This summary is machine-generated.

A new computerized visual field test (c-VFT) offers a quick screening for central visual field defects in stroke patients. This tool provides valuable, accessible data for neuropsychological assessments.

Keywords:
Anopiahemianopianeuropsychological assessmentstrokevisual field screening

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Area of Science:

  • Neuroscience
  • Ophthalmology
  • Clinical Psychology

Background:

  • Visual field defects affect 30-40% of stroke survivors, complicating neuropsychological assessments.
  • Assessing the central visual field is crucial but often challenging in stroke patients.
  • Existing methods may not provide readily available central visual field information.

Purpose of the Study:

  • To develop and validate a screening tool, the computerized visual field test (c-VFT), for assessing central visual field integrity in stroke patients.
  • To evaluate the criterion validity of c-VFT against established visual field tests.

Main Methods:

  • c-VFT was tested in two groups of stroke patients, comparing results with the Esterman test and the Humphrey Visual Field Analyzer (HFA) central 10-2.
  • Criterion validity was assessed using intraclass correlation (quadrantwise and point-to-point), sensitivity, and specificity.

Main Results:

  • c-VFT demonstrated moderately good correspondence with both the Esterman test and HFA 10-2.
  • High intraclass correlation, sensitivity (0.89), and specificity (0.97) were observed for points within one degree of visual angle.
  • The tool is designed for ease of use and free availability.

Conclusions:

  • The c-VFT serves as a reasonable and accessible screening tool for the central visual field in stroke patients.
  • While not a replacement for diagnostic testing, it provides valuable preliminary data for clinicians and researchers.
  • The freely available c-VFT can aid in the neuropsychological evaluation of stroke survivors.