ArticleBMC ophthalmology2021
Thai version of the dry eye-related quality-of-life score questionnaire: preliminary assessment for psychometric properties.
Article in BMC ophthalmology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06860659 (Efficacy of 0.28% Sodium Hyaluronate Eye Drops in Patient With Moderate to Severe Dry Eye), which is not on this map. Cited by 4 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Efficacy of 0.28% Sodium Hyaluronate Eye Drops in Patient With Moderate to Severe Dry Eye : A Randomized Double-blind Controlled Trial
Who cites it
4 citing papers in PubMed.
- Prevalence of dry eye disease symptoms and impact on quality-of-life among hospital staff during the COVID-19 pandemic.Scientific reports · 2025Article
- Dry eye disease severity and impact on quality of life in type II diabetes mellitus.Frontiers in medicine · 2023Article
- Reliability, validity, and responsiveness of the Thai version of the Dry Eye-Related Quality-of-Life Score questionnaire.PloS one · 2022Article
- Provocation of dry eye disease symptoms during COVID-19 lockdown.Scientific reports · 2021Article
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThis study aimed to develop a Thai version of the Dry Eye-Related Quality-of-Life Score (DEQS-Th) questionnaire and evaluate its validity, reliability, and feasibility among Thai participants.
methodsThe DEQS-Th, a 15-item self-report measuring dry eye and its impact on quality of life (QOL) was developed based on the DEQS. The questionnaire was divided into two subscales: Bothersome Ocular Symptoms (six questions), and Impact on Daily Life (nine questions). It employed a 5-point Likert scale, addressing on both the frequency and the degree of symptoms. Backward and forward and cultural adaptation process translation methods were employed. Thirty healthy participants were enrolled to evaluate the feasibility of the DEQS-Th in terms of difficulty and convenience. Reliability was assessed using internal consistency determined by Cronbach's alpha, with values > 0.7 considered acceptable. Convergent validity was determined by the correlation between DEQS-Th and overall health status. Confirmatory factor analysis was conducted for its factor structure.
resultsThe participants' mean age was 38.6 ± 12.9 years, and 23 (76.7%) were females. The mean time to complete the questionnaire was 9.3 ± 2.7 min. The Cronbach's alpha of the ocular symptoms subscale, impact on QOL subscale, and summary score on frequency and degree were 0.80 and 0.70, 0.89 and 0.89, and 0.90 and 0.89, respectively. The overall health status significantly correlated with the summary score (r = 0.564, p = .001), subscale ocular symptoms (r = 0.594, p = .001), and impact on QOL scores (r = 0.626, p < .001) of the DEQS-Th, respectively. A one-factor model fitted the data the best for both the ocular symptoms subscale (CFI = 1.000, TLI = 1.000, RMSEA = 0.000) and the impact on QOL subscale (CFI = 0.998, TLI = 0.997, RMSEA = 0.053).
conclusionWhen tested among normal participants, the DEQS-Th is a valid and reliable measurement for dry eye symptoms and impact on QOL.
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