Methodological aspects of using a wearable eye-tracker to support diagnostic clinical evaluation of prolonged disorders of consciousness
Objective: To evaluate the feasibility of using a wearable eye-tracker when assessing patients with prolonged disorders of consciousness using the Coma Recovery Scale Revised (CRS-R), focusing on technical challenges. Design: A methodological investigation with descriptive and analytical elements. S...
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doaj-8afe8c5a6677438c95543230660f0b432021-07-08T05:27:50ZengFoundation for Rehabilitation InformationJournal of Rehabilitation Medicine1650-19771651-20812021-07-01537jrm0021310.2340/16501977-28472803Methodological aspects of using a wearable eye-tracker to support diagnostic clinical evaluation of prolonged disorders of consciousnessJan Johansson0Kristina FranzonAlison K. GodboltMarika C. Möller Department of Clinical Neuroscience, Eye and Vision, Marianne Bernadotte Centre, Karolinska Institute, St Erik Eye Hospital, Stockholm, Sweden. E-mail: jan.johansson.1@ki.se. Objective: To evaluate the feasibility of using a wearable eye-tracker when assessing patients with prolonged disorders of consciousness using the Coma Recovery Scale Revised (CRS-R), focusing on technical challenges. Design: A methodological investigation with descriptive and analytical elements. Subjects: Four patients with prolonged disorders of consciousness were recruited from the rehabilitation clinic of a regional rehabilitation unit. Methods: A selection of subtests in the CRS-R were performed while recording eye movements with a wearable eye-tracker. Results: No major adverse reactions were observed, suggesting likely patient acceptability. Calibration was not always possible. However, distinct eye movements were discernible from the recorded data even without calibration, and analysis of these produced results with the potential to support clinical assessment. Conclusion: Eye tracking was feasible during clinical assessment for this patient group. Recording eye movement responses in these easily fatigued patients has the potential to add sensitivity for detection of conscious responses and to complement clinical examination. Further study is merited. Current hardware and software limitations can be overcome with manual data processing and analysis; however, significant developments in automating data processing will be required for broader clinical application. https://www.medicaljournals.se/jrm/content/html/10.2340/16501977-2847 disorders of consciousness coma recovery scale revised crs-r eye tracking diagnostic accuracy. |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jan Johansson Kristina Franzon Alison K. Godbolt Marika C. Möller |
spellingShingle |
Jan Johansson Kristina Franzon Alison K. Godbolt Marika C. Möller Methodological aspects of using a wearable eye-tracker to support diagnostic clinical evaluation of prolonged disorders of consciousness Journal of Rehabilitation Medicine disorders of consciousness coma recovery scale revised crs-r eye tracking diagnostic accuracy. |
author_facet |
Jan Johansson Kristina Franzon Alison K. Godbolt Marika C. Möller |
author_sort |
Jan Johansson |
title |
Methodological aspects of using a wearable eye-tracker to support diagnostic clinical evaluation of prolonged disorders of consciousness |
title_short |
Methodological aspects of using a wearable eye-tracker to support diagnostic clinical evaluation of prolonged disorders of consciousness |
title_full |
Methodological aspects of using a wearable eye-tracker to support diagnostic clinical evaluation of prolonged disorders of consciousness |
title_fullStr |
Methodological aspects of using a wearable eye-tracker to support diagnostic clinical evaluation of prolonged disorders of consciousness |
title_full_unstemmed |
Methodological aspects of using a wearable eye-tracker to support diagnostic clinical evaluation of prolonged disorders of consciousness |
title_sort |
methodological aspects of using a wearable eye-tracker to support diagnostic clinical evaluation of prolonged disorders of consciousness |
publisher |
Foundation for Rehabilitation Information |
series |
Journal of Rehabilitation Medicine |
issn |
1650-1977 1651-2081 |
publishDate |
2021-07-01 |
description |
Objective: To evaluate the feasibility of using a wearable eye-tracker when assessing patients with prolonged disorders of consciousness using the Coma Recovery Scale Revised (CRS-R), focusing on technical challenges.
Design: A methodological investigation with descriptive and analytical elements.
Subjects: Four patients with prolonged disorders of consciousness were recruited from the rehabilitation clinic of a regional rehabilitation unit.
Methods: A selection of subtests in the CRS-R were performed while recording eye movements with a wearable eye-tracker.
Results: No major adverse reactions were observed, suggesting likely patient acceptability. Calibration was not always possible. However, distinct eye movements were discernible from the recorded data even without calibration, and analysis of these produced results with the potential to support clinical assessment.
Conclusion: Eye tracking was feasible during clinical assessment for this patient group. Recording eye movement responses in these easily fatigued patients has the potential to add sensitivity for detection of conscious responses and to complement clinical examination. Further study is merited. Current hardware and software limitations can be overcome with manual data processing and analysis; however, significant developments in automating data processing will be required for broader clinical application. |
topic |
disorders of consciousness coma recovery scale revised crs-r eye tracking diagnostic accuracy. |
url |
https://www.medicaljournals.se/jrm/content/html/10.2340/16501977-2847
|
work_keys_str_mv |
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