ArticleInternational journal of ophthalmology2018
Validation of the Glaucoma Quality of Life-15 Questionnaire in Serbian language.
Article in International journal of ophthalmology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04609345 (Prevalence of Ocular Surface Disease in Malaysian Glaucoma Patients), which is not on this map. Cited by 5 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
Prevalence of Ocular Surface Disease in Malaysian Glaucoma Patients
Who cites it
5 citing papers in PubMed, 1 synthesis or guideline pooled it.
- How do different lighting conditions affect the vision and quality of life of people with glaucoma? A systematic review.Eye (London, England) · 2020Pooled it
- Changes in Quality of Life Among Glaucoma Patients Following Six Months of Niacinamide Supplementation.Nutrients · 2025Article
- The association between perceived cause of glaucoma and illness perceptions.Frontiers in medicine · 2024Article
- A comparative study of vision-related quality of life (VRQoL) among glaucoma and nonglaucoma patients at a tertiary care center of North India.Indian journal of ophthalmology · 2023Article
- Evaluation of the association between macular damage and disability glare in patients with advanced glaucoma.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2022Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
aimTo translate the Glaucoma Quality of Life-15 (GQL-15) to Serbian language and asses its validity and reliability in the population of Serbian patients.
methodsThe study included 177 glaucoma patients. Clinical parameters (visual acuity, mean defect and square root of loss variance of visual field) and socio-demographic data were collected. Patients were stratified according to the Nelson's glaucoma staging system as mild, moderate and advanced glaucoma. All patients filled out the GQL-15 and National Eye Institute Visual Function Questionnaire (NEI-VFQ 25). The GQL-15 was translated following the internationally-accepted methodology, and its psychometric properties were assessed by using classical test theory and Rasch analysis.
resultsThe mean total score for the GQL-15 was 20.68±7.31. The Cronbach's alpha coefficient for the whole scale was 0.89 (central and near vision, α=0.24; peripheral vision, α=0.85; glare and dark adaptation, α=0.83). Factor analysis established 4 factors (70.3% of variance): two corresponding to the original factors and two new factors specific for the Serbian population. The GQL-15 score correlated positively with almost all clinical parameters and NEI-VFQ 25 proving good criterion validity. Correlation of the GQL-15 total score on test-retest confirmed appropriate scale reproducibility (ρ=0.96,
conclusionSerbian version of the GQL-15 demonstrates adequate reliability and validity. This version of the GQL-15 is a valid instrument for evaluation of quality of life among Serbian speaking patients with glaucoma and can be applied in daily clinical work.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.