![]() Goldstein JE, Fenwick EK, Finger RP, Gothwal V, Jackson ML, Lamoureux EL, Rees G, Massof R. The impact of vision impairment questionnaire: an assessment of its domain structure using confirmatory factor analysis and Rasch analysis. Investigative Ophthalmology & Visual Science. Lamoureux EL, Pallant JF, Pesudovs K, Rees G, Hassell JB, Keeffe JE. Rasch analysis of domain structure of the IVI The Impact of Vision Impairment Questionnaire: an evaluation of its measurement properties using Rasch analysis. Investigative Ophthalmology & Visual Science. Lamoureux EL, Pallant JF, Pesudovs K, Hassell JB, Keeffe JE. Assessment of the impact of vision impairment. Investigative Ophthalmology & Visual Science. Scoring guide of the Impact of Vision Impairment Questionnaire.Impact of Vision Impairment Questionnaire.Please contact you would like a pdf copy of the following: This questionnaire is now managed by the Singapore Eye Research Institute, a collaborator of CERA. ![]() ![]() It has been extensively validated in populations with different levels of vision impairment and various eye conditions, including age-related macular degeneration, glaucoma, cataract and diabetic retinopathy. The IVI comprises three vision-specific subscales: ‘reading and accessing information’, ‘mobility and independence’ and ‘emotional well-being’. Items 1-15 have an additional response don’t do this for other reasons. It contains 28 items with 3-4 response options using Likert scaling, ranging from not at all to a lot. The IVI is a questionnaire that measures the impact of vision impairment on VRQoL. ![]()
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