Toprak A.B.Eser E.Guler C.Baser F.E.Mayali H.2024-07-222024-07-22200517445086http://akademikarsiv.cbu.edu.tr:4000/handle/123456789/19749Purpose: To test the validity and reliability of the Turkish version of the self-administered form of the National Eye Institute Visual Functioning Questionnaire (NEI-VFQ 25). Methods: Patients with no limitations to respond to a health status interview and affected by a chronic eye disease were enrolled. The Turkish versions of the abbreviated form of World Health Organization Quality of Life (WHOQOL-BREF) and the NEI-VFQ 25 instruments were administered to all participants. Results: The mean (SD) age of the participants was 60.9 (14.5) years. There were 61 patients with one of the following conditions: Cataract (57.4%), diabetic retinopathy (13.2%), age related macular degeneration (ARMD) (11.4%), glaucoma (9.8%) and degenerative myopia (8.2%). The Cronbach alpha of the overall scale was 0.97; the Cronbach alpha ranged from 0.94 to 0.78 for the subscales. The physical, psychological, environmental and social domains of the WHOQOL-BREF had fair to good correlations with the NEI-VFO 25 (r = 0.68 to r = 0.26), which indicated a sufficient convergent validity. Patients with lower visual acuity (VA) had lower index scores than those with higher VA (p = 0.001), which showed a sufficient responsiveness. Conclusion: Statistical analysis showed that Turkish version of the NEI-VFQ is a valid and reliable instrument to measure vision-related quality of life in patients with chronic eye diseases. Copyright © Taylor & Francis Inc.EnglishCross-Cultural ComparisonCross-Sectional StudiesEye DiseasesFemaleHealth SurveysHumansLanguageMaleMiddle AgedNational Institutes of Health (U.S.)OphthalmologyQuality of LifeQuestionnairesReproducibility of ResultsSickness Impact ProfileTurkeyUnited StatesVision TestsVisual Acuityadultagedarticlecataractcontrolled studydiabetic retinopathyeye diseasefemaleglaucomahealth statushumaninstitutional careinterviewmajor clinical studymalemyopiapriority journalquality of lifequestionnairereliabilityretina macula degenerationscoring systemsocial aspectTurkey (republic)validation processvisionvisual acuityworld health organizationcross-sectional studycultural factoreye diseasehealth care organizationhealth surveyinstrumentationlanguagemethodologymiddle agedophthalmologypathophysiologyphysiologyquality of lifequestionnairereproducibilitySickness Impact ProfileUnited Statesvalidation studyvision testvisual acuityArticle10.1080/09286580590967763