Structural validity of the impact of vision impairment questionnaire among patients with visual impairment in Thailand.

ABSTRACT:

Background

The Impact of Vision Impairment (IVI) questionnaire is used to assess vision-related quality of life (VRQOL) among patients with visual impairment. This study aims to evaluate the factor structure of the IVI in the context of Thai culture to assess psychometric properties.

Methods

This cross-sectional study was conducted between February and July 2022. Purposive sampling was used to include 502 patients with visual impairment who received treatment at a tertiary eye center, King Chulalongkorn Memorial Hospital, Bangkok, Thailand. The data were collected using the interviewer-administered questionnaire. The participants were randomly divided into two groups: one employed for exploratory factor analysis (EFA; n = 251) and the other for confirmatory factor analysis (

SUBMITTER: Tantirattanakulchai P 

PROVIDER: S-EPMC11388659 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature