TY - GEN
T1 - Design and evaluation of a wearable assistive technology for hemianopic stroke patients
AU - Amini, Navid
AU - Lim, Jung S.
AU - Mohammadi, Farnaz
AU - Thodos, Clinton
AU - Braun, Benjamin
AU - Ghasemzadeh, Hassan
AU - Chun, Melissa W.
AU - Nouri-Mahdavi, Kouros
N1 - Funding Information:
We would like to greatly thank Vodafone Americas Foundation for providing us with financial support for this study.
Publisher Copyright:
© 2020 Owner/Author.
PY - 2020/9/4
Y1 - 2020/9/4
N2 - More than one million people in the US suffer from hemianopia, which blinds the vision in one half of the peripheral vision in both eyes. Patients with hemianopia are often not aware of what they cannot see and frequently bump into walls, trip over objects, or walk into people on the side where the peripheral vision is diminished. In this study, we present an augmented reality based assistive technology that expands the peripheral vision of hemianopic patients at all distances. In a pilot trial, we evaluate the utility of this assistive technology for ten hemianopic patients. We measure and compare outcomes related to target identification and visual search in the participants. Improvements in target identification are noted in all participants ranging from 18% to 72%. Similarly, all the participants benefit from the assistive technology in performing a visual search task with an average increase of 24% in the number of successful searches compared to unaided trials. The proposed technology is the first instance of an electronic vision enhancement tool for patients with hemianopia and is expected to maximize the residual vision and quality of life in this growing, yet largely overlooked population.
AB - More than one million people in the US suffer from hemianopia, which blinds the vision in one half of the peripheral vision in both eyes. Patients with hemianopia are often not aware of what they cannot see and frequently bump into walls, trip over objects, or walk into people on the side where the peripheral vision is diminished. In this study, we present an augmented reality based assistive technology that expands the peripheral vision of hemianopic patients at all distances. In a pilot trial, we evaluate the utility of this assistive technology for ten hemianopic patients. We measure and compare outcomes related to target identification and visual search in the participants. Improvements in target identification are noted in all participants ranging from 18% to 72%. Similarly, all the participants benefit from the assistive technology in performing a visual search task with an average increase of 24% in the number of successful searches compared to unaided trials. The proposed technology is the first instance of an electronic vision enhancement tool for patients with hemianopia and is expected to maximize the residual vision and quality of life in this growing, yet largely overlooked population.
KW - assistive technologies
KW - augmented reality
KW - hemianopia
KW - stroke
UR - http://www.scopus.com/inward/record.url?scp=85091596946&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85091596946&partnerID=8YFLogxK
U2 - 10.1145/3410531.3414296
DO - 10.1145/3410531.3414296
M3 - Conference contribution
AN - SCOPUS:85091596946
T3 - Proceedings - International Symposium on Wearable Computers, ISWC
SP - 7
EP - 11
BT - ISWC 2020 - Proceedings of the 2020 ACM International Symposium on Wearable Computers
PB - Association for Computing Machinery
T2 - 2020 ACM International Symposium on Wearable Computers. ISWC 2020
Y2 - 12 September 2020 through 17 September 2020
ER -