JOURNAL ARTICLE

Validity and reliability study for the NEI-VFO-39 scale in chronic ophthalmic diseases—Turkish version

Emine Iyigun, Atilla Bayer, Sevinc Tastan, Meral Demiralp, Cengizhan Acikel
Acta Ophthalmologica 2010, 88 (4): e115-9
20346083

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.

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