Italian translation and validation of the Contact Lens Dry Eye Questionnaire-8 (CLDEQ-8)
Copyright © 2023. Published by Elsevier Ltd..
PURPOSE: To translate and validate an Italian version of the CLDEQ-8 (CLDEQ-8_IT).
METHODS: The study was carried out in two phases. In the first phase, a cross-cultural adaptation of CLDEQ-8 to Italian was performed by forward and backward translation in sequence. In the second phase, a multi-centre study was conducted for the validation of the questionnaire. Validity CLDEQ-8_IT was evaluated against three gestalt questions: overall opinion of soft contact lenses (CLs), global self-assessments of eye sensitivity and eye dryness. Reliability was evaluated by test-retest assessment in a subgroup of subjects. Finally, the psychometric properties of CLDEQ-8_IT were explored by Rasch analysis.
RESULTS: Two hundred and forty soft CL wearers, fluent Italian speakers (73 males and 167 females), between 18 and 70 years of age were enrolled. A significant correlation was found between CLDEQ-8_IT and each of the three Gestalt questions. The cutoff score of 12 points demonstrated the best balance between sensitivity and specificity in differentiating wearers grading their CLs as "Excellent/Very good" from those reporting their overall opinion as "Good/Fair/Poor". The Intraclass Correlation Coefficient between test and retest was 0.88 (95% CI: 0.81-0.92). Finally, infit and outfit statistics using Rasch analysis for the 8 items were in a good range, however Principal Components Analysis revealed a certain degree of multi-dimensionality of the instrument. Also, item 8 analysis could be computed after merging the last two response categories.
CONCLUSION: The CLDEQ-8_IT showed very good validity and reliability in measuring symptoms of CL wearers, comparable to the original English language version. A cut-off of 12 was confirmed as yielding the best balance between sensitivity and specificity in detecting CL wearers who could benefit from clinical management of their CL-related symptoms. Collapsing of the response options 5 and 6 in the last item of questionnaire could optimise its functioning.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:46 |
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| Enthalten in: |
Contact lens & anterior eye : the journal of the British Contact Lens Association - 46(2023), 3 vom: 02. Juni, Seite 101842 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Zeri, Fabrizio [VerfasserIn] |
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| Links: |
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| Themen: |
CLDEQ-8_IT |
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| Anmerkungen: |
Date Completed 29.05.2023 Date Revised 01.06.2023 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.clae.2023.101842 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM355290820 |
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| 245 | 1 | 0 | |a Italian translation and validation of the Contact Lens Dry Eye Questionnaire-8 (CLDEQ-8) |
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| 500 | |a Date Revised 01.06.2023 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Copyright © 2023. Published by Elsevier Ltd. | ||
| 520 | |a PURPOSE: To translate and validate an Italian version of the CLDEQ-8 (CLDEQ-8_IT) | ||
| 520 | |a METHODS: The study was carried out in two phases. In the first phase, a cross-cultural adaptation of CLDEQ-8 to Italian was performed by forward and backward translation in sequence. In the second phase, a multi-centre study was conducted for the validation of the questionnaire. Validity CLDEQ-8_IT was evaluated against three gestalt questions: overall opinion of soft contact lenses (CLs), global self-assessments of eye sensitivity and eye dryness. Reliability was evaluated by test-retest assessment in a subgroup of subjects. Finally, the psychometric properties of CLDEQ-8_IT were explored by Rasch analysis | ||
| 520 | |a RESULTS: Two hundred and forty soft CL wearers, fluent Italian speakers (73 males and 167 females), between 18 and 70 years of age were enrolled. A significant correlation was found between CLDEQ-8_IT and each of the three Gestalt questions. The cutoff score of 12 points demonstrated the best balance between sensitivity and specificity in differentiating wearers grading their CLs as "Excellent/Very good" from those reporting their overall opinion as "Good/Fair/Poor". The Intraclass Correlation Coefficient between test and retest was 0.88 (95% CI: 0.81-0.92). Finally, infit and outfit statistics using Rasch analysis for the 8 items were in a good range, however Principal Components Analysis revealed a certain degree of multi-dimensionality of the instrument. Also, item 8 analysis could be computed after merging the last two response categories | ||
| 520 | |a CONCLUSION: The CLDEQ-8_IT showed very good validity and reliability in measuring symptoms of CL wearers, comparable to the original English language version. A cut-off of 12 was confirmed as yielding the best balance between sensitivity and specificity in detecting CL wearers who could benefit from clinical management of their CL-related symptoms. Collapsing of the response options 5 and 6 in the last item of questionnaire could optimise its functioning | ||
| 650 | 4 | |a Multicenter Study | |
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| 650 | 4 | |a Contact lens discomfort | |
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| 700 | 1 | |a Menduni, Francesco |e verfasserin |4 aut | |
| 700 | 1 | |a Ponzini, Erika |e verfasserin |4 aut | |
| 700 | 1 | |a Chalmers, Robin |e verfasserin |4 aut | |
| 700 | 1 | |a Desiato, Alfredo |e verfasserin |4 aut | |
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