Cited by 38Assistive Technology in Communication and MobilityOphthalmology and Visual Impairment StudiesAdvanced Optical Imaging Technologies

Ability of head-mounted display technology to improve mobility in people with low vision: a systematic review

Open access
Htike, Hein Min, Margrain, Tom H., Lai, Yu-Kun, Eslambolchilar, Parisa·2020·Translational Vision Science & Technology

Abstract

Purpose: The purpose of this study was to undertake a systematic literature review on how vision enhancements, implemented using head-mounted displays (HMDs), can improve mobility, orientation, and associated aspects of visual function in people with low vision. Methods: The databases Medline, Chinl, Scopus, and Web of Science were searched for potentially relevant studies. Publications from all years until November 2018 were identified based on predefined inclusion and exclusion criteria. The data were tabulated and synthesized to produce a systematic review. Results: The search identified 28 relevant papers describing the performance of vision enhancement techniques on mobility and associated visual tasks. Simplifying visual scenes improved obstacle detection and object recognition but decreased walking speed. Minification techniques increased the size of the visual field by 3 to 5 times and improved visual search performance. However, the impact of minification on mobility has not been studied extensively. Clinical trials with commercially available devices recorded poor results relative to conventional aids. Conclusions: The effects of current vision enhancements using HMDs are mixed. They appear to reduce mobility efficiency but improved obstacle detection and object recognition. The review highlights the lack of controlled studies with robust study designs. To support the evidence base, well-designed trials with larger sample sizes that represent different types of impairments and real-life scenarios are required. Future work should focus on identifying the needs of people with different types of vision impairment and providing targeted enhancements. Translational Relevance: This literature review examines the evidence regarding the ability of HMD technology to improve mobility in people with sight loss.

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  • The majority of research on visual prostheses and low vision aids has focused on technical aspects rather than usability.

    “As pointed out by Htike et al. (2020) and Erickson-Davis and Korzybska (2021), the majority of research on visual prostheses (and more generally: low vision aids) has focused on the technical aspects rather than the usability of these devices.”

    From Towards a <i>Smart Bionic Eye</i> : AI-powered artificial vision for the treatment of incurable blindness (2022) · cites this paper as Htike et al., 2020

    The Results section, under “Human Computer Interaction Aspects” (page unavailable), says most studies of head-mounted displays as mobility aids did not mention usability-related HCI aspects. That supports the concern about neglected usability, but the review does not establish the same pattern for visual prostheses or low-vision aids generally, nor does this passage say those studies focused on technical aspects instead. (LLM, conf=0.86)

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  • Blind people use a combination of devices and technology to complement their existing orientation and mobility skills, which may lead to a wide variety of navigation styles.

    “Furthermore, blind people use a combination of devices and technology to complement their existing orientation and mobility skills (Williams et al., 2014), which may lead to a wide variety of navigation styles (Ahmetovic et al., 2019; Htike et al., 2020).”

    From Towards a <i>Smart Bionic Eye</i> : AI-powered artificial vision for the treatment of incurable blindness (2022) · cites this paper as Htike et al., 2020

    Htike et al. is cited for the suggestion that combining aids may lead to a wide variety of navigation styles. The Introduction lists mobility aids, and the Discussion considers using head-mounted displays alongside habitual aids, but neither passage addresses whether people consequently navigate in different styles. I searched for navigation styles and individual mobility strategies; our copy did not substantiate that attributed point. (LLM, conf=0.70)

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Research works printed but not linked: 4

  1. [36]Szpiro S, Zhao Y, Azenkot S Finding a store, searching for a product: a study of daily challenges of low vision people. Milwaukee, WI: UbiComp ’16; 2016: 61– 72.
  2. [57]Kress BC, Cummings WJ. Towards the ultimate mixed reality experience: Hololens display architecture choices. Dig Tech Pap - SID Int Symp. 2017; 48: 127– 131.
  3. [61]Mori S, Ikeda S, Sandor C, Plopski A BrightView: increasing perceived brightness in optical see-through head-mounted displays. 2018 IEEE Conference on Virtual Reality and 3D User Interfaces (VR), Reutlingen. 2018: 251– 258.
  4. [82]Bai J, Lian S, Liu Z, Wang K, Liu D Smart guiding glasses for visually impaired people in indoor environment. IEEE Trans Consum Electron. 2017; 63: 258– 266.

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Authors
Htike, H. M., Margrain, T. H., Lai, Y.-K., & Eslambolchilar, P.
Affiliations
Cardiff University (GB)
Corresponding author
Eslambolchilar, Parisa
Venue
Translational Vision Science & Technology
Published
2020-09-24
Volume
9
Issue
10
Pages
26
ISSN
2164-2591 (ISSN-L)
OpenAlex
W3088082296
Cited by
38
References
86
Citations by year
2026: 3 · 2025: 10 · 2024: 6 · 2023: 8 · 2022: 7 · 2021: 4
FWCI
1.17
Type
journal article
Language
en
Open access
Locations
  • Translational Vision Science & Technology (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • ORCA Online Research @Cardiff (Cardiff University) (acceptedVersion)
Topics
  • Health Sciences › Health Professions › Occupational Therapy › Assistive Technology in Communication and Mobility
  • Health Sciences › Medicine › Epidemiology › Ophthalmology and Visual Impairment Studies
  • Physical Sciences › Engineering › Media Technology › Advanced Optical Imaging Technologies
Keywords
head-mounted displays, low vision, mobility (physical function), vision improvement, visual field expansion, obstacle detection, object recognition, visual search, walking speed, visual impairment, assistive technology
MeSH terms
Blindness, Humans, Orientation, Technology, Visual Perception, Vision, Low

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