Journal article
Validity of a layperson-administered Web-based vision screening test
Journal of AAPOS, Vol.19(1), pp.29-32
02/2015
DOI: 10.1016/j.jaapos.2014.10.021
PMID: 25727583
Abstract
To determine the sensitivity and specificity of the Web-based vision-screening test (WBT) VisionForKids.org when administered by an untrained layperson in a controlled environment. Visual acuities were obtained by an untrained layperson using the WBT under observation and by an ophthalmic professional using the Electronic Visual Acuity (EVA) Tester. Subjects were randomized to which method was used first. Subjects were considered to have failed by the following criteria: in children <48 months, 20/50 vision; in children between 48 and 59 months, 20/40 or worse; in children ≥60 months, 20/30 or worse. The results of the vision examinations by the WBT and the EVA Tester were compared; sensitivity and specificity of the WBT and the correlation coefficient to detect normal and abnormal vision compared to EVA testing were determined. Visual acuities were obtained on 203 children between ages 3 and 12 years (average age, 7.4 years). Sensitivity of the WBT was 78.7% (95% CI, 66.0%-87.7%), specificity was 89.4% (95% CI, 82.9%-93.8%). The correlation coefficient of EVA testing with the WBT was 0.89 (P < 0.001). This layperson-administered WBT, VisionForKids.org, is valid for identifying amblyopia in a controlled environment, making it possible for cost-effective and easily accessible vision screening to be performed by laypersons.
Details
- Title: Subtitle
- Validity of a layperson-administered Web-based vision screening test
- Creators
- Susannah Q Longmuir - Departments of Ophthalmology and Visual Sciences, University of Iowa, Iowa City, Iowa. Electronic address: susannah-longmuir@uiowa.eduWanda Pfeifer - Departments of Ophthalmology and Visual Sciences, University of Iowa, Iowa City, IowaShaival S Shah - Departments of Ophthalmology and Visual Sciences, University of Iowa, Iowa City, IowaRichard Olson - Departments of Ophthalmology and Visual Sciences, University of Iowa, Iowa City, Iowa
- Resource Type
- Journal article
- Publication Details
- Journal of AAPOS, Vol.19(1), pp.29-32
- Publisher
- United States
- DOI
- 10.1016/j.jaapos.2014.10.021
- PMID
- 25727583
- ISSN
- 1091-8531
- eISSN
- 1528-3933
- Language
- English
- Date published
- 02/2015
- Academic Unit
- Stead Family Department of Pediatrics; Ophthalmology and Visual Sciences
- Record Identifier
- 9983979986502771
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