Validation of the Spanish version of the Low Vision Quality of Life Questionnaire.

ABSTRACT:

Purpose

To validate the Spanish Low Vision Qualify of Life (SLVQOL) questionnaire, a quality of life instrument specifically designed for patients with visual impairment, and evaluate its psychometric properties.

Methods

The study included 170 visually impaired patients and 195 healthy subjects. Participants were administered the SLVQOL, the NEI VFQ-25, and the EQ 5D-5L questionnaires. Reliability, test-retest reproducibility, feasibility, and construct validity of the SLVQOL were assessed. The Generalized Partial Credit Model was used to fit the data and the performance of each item was characterized using category response curves and item information.

Results

The reliability of the SLVQOL was 0.981 (95% CI: 0.978-0.985). Test-retest reproducibility was good (ρ=0.864

SUBMITTER: Perez-Mana L 

PROVIDER: S-EPMC9237595 | biostudies-literature | 2022 Jul-Sep

REPOSITORIES: biostudies-literature