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Validity and reliability study for the NEI‐VFO‐39 scale in chronic ophthalmic diseases – Turkish version
Author(s) -
Iyigun Emine,
Bayer Atilla,
Tastan Sevinc,
Demiralp Meral,
Acikel Cengizhan
Publication year - 2010
Publication title -
acta ophthalmologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.534
H-Index - 87
eISSN - 1755-3768
pISSN - 1755-375X
DOI - 10.1111/j.1755-3768.2009.01810.x
Subject(s) - cronbach's alpha , turkish , medicine , quality of life (healthcare) , validity , diabetic retinopathy , physical therapy , reliability (semiconductor) , optometry , ophthalmology , clinical psychology , psychometrics , diabetes mellitus , philosophy , linguistics , power (physics) , physics , nursing , endocrinology , quantum mechanics
. Purpose: To test the reliability and validity of National Eye Institute Visual Function Questionnaire (NEI‐VFQ‐39) in patients with glaucoma, cataract, diabetic retinopathy and age‐related macular degeneration. Methods: The study was carried out on 210 patients and 51 control subjects. The data were collected by using a data collection form and NEI‐VFQ‐39. Statistical analyses were performed with spss for Windows version 15.0. Results: Cronbach’s alpha coefficient was 0.96 for the whole group. Cronbach’s alpha coefficient was between 0.97 and 0.56 for the subscales. There was a strong relationship ( r > 0.80) in 12.8% with dual correlation in NEI‐VFQ‐39 global scales and subscales and their correlations in all participant groups. There was a statistically significant difference for the NEI‐VFn global and subscale scores between the control and patient groups except for general health and ocular pain. Conclusions: We found that the NEI‐VFQ‐39 was a valid and reliable scale to determine the quality of life in Turkish patients with chronic ophthalmic disease.