Description
The 28-item IVI measures the impact of vision impairment on vision-related quality of life in adults.
The IVI provides an overall score, and three subscale scores:
1)Reading and Accessing Information
2)Mobility and Independence
3)Emotional well-being
It has been extensively validated in clinical and population-based studies, and various eye conditions, including age-related macular degeneration, glaucoma, cataract and diabetic retinopathy.
The IVI has been used in numerous intervention studies, including Phase 3 randomised controlled trials, and is responsive to treatment and low vision vision rehabilitation.
It is s available in more than 20 Languages with linguistic validation conducted according to ISPOR guidelines
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