Measuring vision, orientation and mobility in the wild

Deverell, Lil

doi:10.4324/9781315111353-23

Cited by 2 publications

(11 citation statements)

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“…Referral criteria for orientation and mobility (O&M) services differ between providers and might include vision and/or mobility problems. Broadly, O&M can embrace any whole-body action we undertake in the course of the day, regardless of visual status ( L. Deverell, 2019 ), and most can take their O&M for granted. However, O&M services were established in Australia in 1971, and afterwards in Malaysia ( Neustadt-Noy & La Grow, 2010 ), to equip people with low vision or blindness to move in any environment as independently as possible.…”

Section: Introductionmentioning

confidence: 99%

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Self-reported use of technology by orientation and mobility clients in Australia and Malaysia before the COVID-19 pandemic

Deverell¹,

Bhowmik²,

Mahmud

et al. 2021

British Journal of Visual Impairment

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Since the 1960s, many electronic travel aids have been developed for people with low vision or blindness to improve their independent travel skills, but uptake of these specialist devices has been limited. This study investigated what technologies orientation and mobility (O&M) clients in Australia and Malaysia have, use, like, and want to support their travel, to inform technology research and development. This two-phase mixed-methods study surveyed O&M clients face-to-face in Malaysia ( n = 9), and online in Australia ( n = 50). Participants managed safe walking using a human guide, long cane, or guide dog when their vision was insufficient to see hazards, but a smartphone is now a standard travel aid in both Australia and Malaysia. Participants relied on smartphone accessibility features and identified 108 apps they used for travel: for planning (e.g., public transport timetables), sourcing information in transit (e.g., GPS location and directions, finding a taxi), sensory conversion (e.g., camera-to-voice, voice-to-text, video-to-live description), social connections (e.g., phone, email, Facebook), food (e.g., finding eateries, ordering online), and entertainment (e.g., music, games). They wanted to ‘carry less junk’, and sought better accessibility features, consistency across platforms, and fast, reliable, real-time information that supports confident, non-visual travel, especially into unfamiliar places.

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Section: Introductionmentioning

confidence: 99%

“…During travel, low vision or blindness can double the time and distance taken to achieve a travel task ( E. A. L. Deverell, 2016 ), limiting confidence, mobility, roaming range, and life-space. Low vision can cause uncertainty about objects and social encounters.…”

Section: Introductionmentioning

confidence: 99%

Self-reported use of technology by orientation and mobility clients in Australia and Malaysia before the COVID-19 pandemic

Deverell¹,

Bhowmik²,

Mahmud

et al. 2021

British Journal of Visual Impairment

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“…The VROOM and OMO tools were developed following bionic vision research (2011–2015), 18 30 where grounded theories about functional vision and mobility were derived from the lived experience of people with advanced retinitis pigmentosa (n=43). 9 To test proof of concept, the VROOM tool was retro-scored with a convenience sample (n=13), drawing on live observations of people selected from across the visual spectrum and video data from the bionic eye project. This process showed that the measurement template worked with a broad spectrum of people including drivers and people with light perception only, yet was precise enough to capture subtle functional improvements in vision.…”

Section: Introductionmentioning

confidence: 99%

“…The three retinal implant recipients each showed a 12%–16% (6–8 point) increase in their VROOM scores when their retinal implant device was switched on. 9 …”

Section: Introductionmentioning

confidence: 99%

“…OMO part B explores activities, connections, life–space, orientation and self-determination (sense of agency), which are drawn from the Effective Mobility Framework, 17 whereas VROOM part B explores vision for reading, visual certainty, mobility aid choices, people and pleasure, which are drawn from new theory about visual purposes. 9 …”

Section: Introductionmentioning

confidence: 99%

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Optimising technology to measure functional vision, mobility and service outcomes for people with low vision or blindness: protocol for a prospective cohort study in Australia and Malaysia

Deverell¹,

Meyer

Mahmud

et al. 2017

BMJ Open

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IntroductionOrientation and mobility (O&M) specialists assess the functional vision and O&M skills of people with mobility problems, usually relating to low vision or blindness. There are numerous O&M assessment checklists but no measures that reduce qualitative assessment data to a single comparable score suitable for assessing any O&M client, of any age or ability, in any location. Functional measures are needed internationally to align O&M assessment practices, guide referrals, profile O&M clients, plan appropriate services and evaluate outcomes from O&M programmes (eg, long cane training), assistive technology (eg, hazard sensors) and medical interventions (eg, retinal implants). This study aims to validate two new measures of functional performance vision-related outcomes in orientation and mobility (VROOM) and orientation and mobility outcomes (OMO) in the context of ordinary O&M assessments in Australia, with cultural comparisons in Malaysia, also developing phone apps and online training to streamline professional assessment practices.Methods and analysisThis multiphase observational study will employ embedded mixed methods with a qualitative/quantitative priority: corating functional vision and O&M during social inquiry. Australian O&M agencies (n=15) provide the sampling frame. O&M specialists will use quota sampling to generate cross-sectional assessment data (n=400) before investigating selected cohorts in outcome studies. Cultural relevance of the VROOM and OMO tools will be investigated in Malaysia, where the tools will inform the design of assistive devices and evaluate prototypes. Exploratory and confirmatory factor analysis, Rasch modelling, cluster analysis and analysis of variance will be undertaken along with descriptive analysis of measurement data. Qualitative findings will be used to interpret VROOM and OMO scores, filter statistically significant results, warrant their generalisability and identify additional relevant constructs that could also be measured.Ethics and disseminationEthical approval has been granted by the Human Research Ethics Committee at Swinburne University (SHR Project 2016/316). Dissemination of results will be via agency reports, journal articles and conference presentations.

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Measuring vision, orientation and mobility in the wild

Cited by 2 publications

References 0 publications

Self-reported use of technology by orientation and mobility clients in Australia and Malaysia before the COVID-19 pandemic

Self-reported use of technology by orientation and mobility clients in Australia and Malaysia before the COVID-19 pandemic

Optimising technology to measure functional vision, mobility and service outcomes for people with low vision or blindness: protocol for a prospective cohort study in Australia and Malaysia

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