Developing the impact of Vision Impairment-Very Low Vision (IVI-VLV) questionnaire as part of the LoVADA protocol.


PURPOSE To design and evaluate an instrument appropriate for assessing vision-related quality of life (VRQoL) in persons with severe vision loss. METHODS A total of 603 legally blind persons (better eye visual acuity of <20/200) were interviewed using an item pool based on the original Impact of Vision Impairment (IVI) questionnaire, augmented by items… (More)
DOI: 10.1167/iovs.14-14731


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