Benefit of an electronic head‐mounted low vision aid

Purpose To evaluate the efficacy of electronic head‐mounted low vision aid (e‐LVA) SightPlus (GiveVision, UK, givevision.net) and to determine which people with low vision would see themselves likely using an e‐LVA like this. Methods Sixty participants with low vision aged 18 to 93 used SightPlus du...

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Bibliographic Details
Published in:Ophthalmic & physiological optics 2019-11, Vol.39 (6), p.422-431
Main Authors: Crossland, Michael D, Starke, Sandra D, Imielski, Piotr, Wolffsohn, James S, Webster, Andrew R
Format: Article
Language:English
Subjects:
Acuity
Adolescent
Adult
Aged
Aged, 80 and over
Binocular vision
Contrast Sensitivity - physiology
Equipment Design
Female
Humans
low vision
Male
Middle Aged
Quality of Life
Reading
Sensory Aids
Side effects
Vision Tests
Vision, Low - physiopathology
Vision, Low - rehabilitation
Visual Acuity
Visual perception
Visually Impaired Persons - rehabilitation
Wearable Electronic Devices
Young Adult
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Summary:Purpose To evaluate the efficacy of electronic head‐mounted low vision aid (e‐LVA) SightPlus (GiveVision, UK, givevision.net) and to determine which people with low vision would see themselves likely using an e‐LVA like this. Methods Sixty participants with low vision aged 18 to 93 used SightPlus during an in‐clinic study session based on a mixed methods design. Visual acuity (ETDRS), contrast sensitivity (Pelli‐Robson) and reading performance (MNREAD) were measured binocularly at baseline (no device), with the device in ‘normal’ mode (zoom only), and with preferred enhanced mode (zoom and one of four digital image enhancements). At the end of the session, a short questionnaire recorded willingness to use an e‐LVA like SightPlus, potential use cases, positive/negative comments and adverse effects. Results Binocular distance visual acuity improved significantly by 0.63 logMAR on average (p 
ISSN:0275-5408
1475-1313
DOI:10.1111/opo.12646