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dc.contributor.authorPérez-Maná, Luis
dc.contributor.authorCardona, Genis
dc.contributor.authorPardo-Cladellas, Yolanda
dc.contributor.authorPérez-Mañá, Clara
dc.contributor.authorAmorós-Martínez, Jaume
dc.contributor.authorGonzález Sanchis, Luis
dc.contributor.authorWolffsohn, James S.
dc.contributor.authorAntón López, Alfonso
dc.date.accessioned2021-05-10T16:13:24Z
dc.date.available2021-05-10T16:13:24Z
dc.date.issued2021-04-18
dc.identifier.citationPérez-Maná, Luis; Cardona, Genis; Pardo-Cladellas, Yolanda [et al.]. Validation of the spanish version of the low vision quality of life questionnaire. Journal of Optometry, 2021, p. 1-11. Disponible en: <https://www.sciencedirect.com/science/article/pii/S1888429621000200?via%3Dihub>. Fecha de acceso: 10 may. 2021. DOI: 10.1016/j.optom.2021.01.004ca
dc.identifier.issn1888-4296ca
dc.identifier.urihttp://hdl.handle.net/20.500.12328/2530
dc.description.abstractPurpose: 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, P < .001). A cut-off point of 105 or 106 was optimal to detect visual impairment, with a sensitivity of 95.4% and a specificity of 91.8%. Construct validity was shown by the corresponding convergence or divergence correlations between the score of the SLVQOL and its dimensions and the overall and partial scores of the NEI VFQ-25 and the EQ 5D-5L. Item response theory analysis showed discrimination and information parameters ranging from 0.539 to 3.063 and from −1.894 to 1.074, respectively. Conclusion: The SLVQOL was able to quantitatively assess and identify differences in the quality of life among patients with visual impairment and normal subjects. The evaluated psychometric properties suggest that this tool has excellent validity, internal consistency, and reproducibility, but may benefit from a reduction of the number of items.en
dc.format.extent11ca
dc.language.isoengca
dc.publisherElsevierca
dc.relation.ispartofJournal of Optometryca
dc.rights© 2021 - Spanish General Council of Optometry. Published by Elsevier España, S.L.U. This is an open access article under the CCBY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).en
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject.otherQualitat de vida -- Avaluacióca
dc.subject.otherTrastorns de la visióca
dc.subject.otherOftalmologiaca
dc.subject.otherCalidad de vida -- Evaluaciónes
dc.subject.otherVista -- Defectoses
dc.subject.otherOftalmologíaes
dc.subject.otherQuality of life -- Evaluationen
dc.subject.otherVision disordersen
dc.subject.otherOphthalmologyen
dc.titleValidation of the spanish version of the low vision quality of life questionnaireen
dc.typeinfo:eu-repo/semantics/articleca
dc.description.versioninfo:eu-repo/semantics/publishedVersionca
dc.rights.accessLevelinfo:eu-repo/semantics/openAccess
dc.embargo.termscapca
dc.subject.udc61ca
dc.subject.udc617ca
dc.identifier.doihttps://dx.doi.org/10.1016/j.optom.2021.01.004ca


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© 2021 - Spanish General Council of Optometry. Published by Elsevier España, S.L.U. This is an open access article under the CCBY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
Except where otherwise noted, this item's license is described as https://creativecommons.org/licenses/by-nc-nd/4.0/