ArticlePloS one2016
The Impact of Vision Impairment (IVI) Questionnaire; Validation of the Thai-Version and the Implementation on Vision-Related Quality of Life in Thai Rural Community.
Article in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 2 of them syntheses that pooled it.
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Who cites it
12 citing papers in PubMed, 2 syntheses or guidelines pooled it, 26 citations in OpenAlex.
- A Systematic Review of Patient-Reported Outcome Instruments Relevant to Glaucoma.Journal of glaucoma · 2026Pooled it
- The relationship between diabetic retinopathy and psychosocial functioning: a systematic review.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2019Pooled it
- Development and Psychometric Evaluation of the Functional Vision Scale for Adults.Healthcare (Basel, Switzerland) · 2026Article
- Article
- Structural validity of the impact of vision impairment questionnaire among patients with visual impairment in Thailand.Heliyon · 2024Article
- Evaluation of the test-retest and inter-mode comparability of the Impact of Vision Impairment questionnaire in people with chronic eye diseases.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2024Article
- Vision-Related Quality of Life in Patients with Systemic Lupus Erythematosus.Healthcare (Basel, Switzerland) · 2024Article
- Effect of a self-care promoting program on engagement in self-care behaviors and health-related outcomes among persons with type 2 diabetes and diabetic retinopathy: A single-blind randomized controlled trial.Belitung nursing journal · 2024Article
- The Association of Dry Eye Disease with Functional Visual Acuity and Quality of Life.Journal of clinical medicine · 2023Article
- Exploring the Quality of Life Related to Health and Vision in a Group of Patients with Diabetic Retinopathy.Healthcare (Basel, Switzerland) · 2022Article
- Translation and content validity of the Dutch Impact of Vision Impairment questionnaire assessed by Three-Step Test-Interviewing.Journal of patient-reported outcomes · 2021Article
- Reducing respondent burden: validation of the Brief Impact of Vision Impairment questionnaire.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2017Article
Corrections and comments
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The objective of this study is to validate the Thai-version of the impact of vision impairment (IVI) questionnaire and to evaluate its impact on vision-related quality of life (VRQoL) in southern Thailand. The IVI questionnaire was translated into Thai according to WHO translation guidelines. In addition to the routine ophthalmological examinations, a Thai version of the IVI questionnaire was administered to all participants. A total of 120 patients with visual impairment who presented at Songklanagarind hospital, Songkhla province, were enrolled in the study; 30 had age-related macular degeneration (AMD), 30 had cataract, 30 had diabetic retinopathy, 30 had glaucoma, and 30 non-visually impaired individuals comprised the control group. Statistical analysis demonstrated the Thai-version IVI questionnaire is valid and reliable to evaluate the VRQoL of the Thai patients through three subscales: (i) mobility and independence, (ii) reading and accessing information, and (iii) emotional well-being. The results demonstrated high consistency in all subscales with Cronbach's alpha ranging from 0.787 to 0.849. Rasch analysis revealed the validity of the Thai-version IVI to assess VRQoL through all three subscales. Test-retest reliability was also high (intraclass correlation coefficient = 0.96). The composite score of the IVI was significantly higher in participants with visual impairment compared with healthy participants. Moreover, the subscale scores of reading and accessing information, and emotional well-being were highest in participants with AMD. While the subscale scores of mobility and independence were highest among those with either cataracts or diabetic retinopathy. The symptoms of the common vision impairment diseases are associated with an adverse impact on VRQoL in a clinic-based population as demonstrated in this study.
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