Translation and validation of the contact lens dry eye questionnaire-8 (CLDEQ-8) to the Spanish language

Manuel Garza-Leon, Francisco Amparo, Gabriela Ortíz, Paola de la Parra-Colin, Valeria Sanchez-Huerta, Francisco Beltran, Everardo Hernandez-Quintela

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

PURPOSE: To present the process of cultural and psychometric adaptation, and clinical validation of a new version in the Spanish language of the Contact Lens Dry Eye Questionnaire-8 (CLDEQ-8).

MATERIALS AND METHODS: The translation-retro-translation method was applied to the CLDEQ-8 questionnaire. Two independent native Spanish-speaking translators adapted the questionnaire from English to Spanish, and then a committee of experienced clinicians (CE) evaluated the semantic equivalence and designed a Spanish version of the CLDEQ-8 questionnaire. The resulting translated version was tested conducting a pilot study in contact lens users and assessing their perception and overall understanding of the terminology. The results were analyzed and a final version was designed. The final version was retro-translated to English by a native English-speaking translator and compared with the original CLDEQ-8 version to confirm there were no meaningful differences. To clinically validate the new instrument, a prospective study was conducted to apply the new Spanish CLDEQ-8 to 50 contact lens users.

RESULTS: Fifty patients were studied with an average age of 21.50 ± 1.66 years. The average CLDEQ-8 score was 13.28 ± 6.81 points (range 1-31). The internal consistency (Cronbach's alpha) was 0.89, with a corrected index of homogeneity >0.50 for all evaluated items.

CONCLUSIONS: The process of trans-cultural adaptation of the questionnaire CLDEQ-8 resulted in the elaboration of a reliable and much needed instrument capable of measuring frequency and intensity of dry eye symptoms in Spanish-speaking contact lens users.

Original languageEnglish
Pages (from-to)155-158
Number of pages4
JournalContact Lens and Anterior Eye
Volume42
Issue number2
DOIs
Publication statusPublished - Apr 2019

Bibliographical note

Copyright © 2018 British Contact Lens Association. Published by Elsevier Ltd. All rights reserved.

All Science Journal Classification (ASJC) codes

  • Ophthalmology
  • Optometry

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