The Veterans Affairs Low-Vision Visual Functioning Questionnaire-48 (VA LV VFQ-48): Performance of the Italian version

Ilaria Di Maggio, Gianni Virgili, Giovanni Giacomelli, Vittoria Murro, Giovanni Sato, Filippo Amore, Gianfrancesco Maria Villani, Stefania Fortini, Simona Turco, Alfredo Pece, Roberta Rizzo, Alessandro Galan, Lucia Giordani, Dario Pasquale Mucciolo*, Laura Nota

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Purpose: The Veterans Affairs Low-Vision Visual Functioning Questionnaire-48 is among the most validated tools to collect patient-reported outcomes in a low-vision population. We have aimed to conduct a pilot validation of the Italian version of the Veterans Affairs Low-Vision Visual Functioning Questionnaire-48. Methods: The Veterans Affairs Low-Vision Visual Functioning Questionnaire-48 was translated using a standardized procedure and then administered to consecutive low-vision patients attending rehabilitation services in three centers. Patients were interviewed by a trained psychologist regarding the individual items of the tool. Results: We included 131 patients with a mean visual acuity of 0.91 logMAR (standard deviation: 0.42 logMAR), mostly affected by age-related macular degeneration. The Veterans Affairs Low-Vision Visual Functioning Questionnaire-48 showed high internal consistency (Cronbach’s alpha: 0.98) and good item-test and item-rest correlation (median: 0.73 and 0.71, respectively). Both the overall score and the subscale (reading, visual motor, mobility and visual information) scores significantly correlated with visual acuity, reading acuity and speed. Reading speed achieved the best absolute correlation with the Veterans Affairs Low-Vision Visual Functioning Questionnaire-48 scores (Spearman r: 0.39–0.49). Conclusion: The Italian version of the Veterans Affairs Low-Vision Visual Functioning Questionnaire-48 is a valid tool to assess patients attending low-vision services. Revising a few items may further improve the tool.

Original languageEnglish
Pages (from-to)1014-1018
Number of pages5
JournalEuropean Journal of Ophthalmology
Volume30
Issue number5
Early online date22 May 2019
DOIs
Publication statusPublished - 01 Sep 2020
Externally publishedYes

Bibliographical note

Funding Information:
The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This study was partially funded by Fondazione Retina 3000, Milano, Italy.

Publisher Copyright:
© The Author(s) 2019.

Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.

Keywords

  • activities of daily living
  • Low-vision
  • quality of life
  • questionnaires
  • rehabilitation

ASJC Scopus subject areas

  • Ophthalmology

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