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Psychometric Properties of Vestibular and Ocular Measures Used for Concussion Assessments: A Scoping Review
Keely Barnes1, Heidi Sveistrup, Motahareh Karimijashni
1Author Affiliations: Faculty of Health Sciences, School of Rehabilitation Sciences, University of Ottawa, Ottawa, Ontario, Canada (Mss Barnes and Karimijashni, and Dr Sveistrup); Bruyère Research Institute, Ottawa, Ontario, Canada (Ms Barnes, and Drs Sveistrup and Marshall); Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada (Mss Barnes and Karimijashni, and Dr Marshall); Faculty of Health Sciences, School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada (Dr Sveistrup); Systems and Computer Engineering Technology, Carleton University, Ottawa, Ontario, Canada (Dr Sveistrup); Kite Research Institute, Toronto Rehabilitation Institute, University Health Network, Toronto, Ontario, Canada (Dr Bayley); Division of Physical Medicine and Rehabilitation, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada (Dr Bayley); and Department of Medicine, University of Ottawa, Ottawa, Ottawa, Ontario, Canada (Dr Marshall).
Background:
Concussions most commonly affect the vestibular and ocular systems. Clinical measures used in the assessment of vestibular and ocular deficits should contain strong psychometric properties so that clinicians can accurately detect abnormality to guide treatment interventions.
Objectives:
The aim of this scoping review was: (1) to identify the measures used to evaluate the vestibular and ocular domains postconcussion and (2) to document the psychometric properties of the measures.
Methods:
Two databases (Medline (Ovid) and Embase) were searched from inception to May 2023. An updated search was completed in January 2024 using the same databases and search terms. Studies were screened and data were extracted independently by 2 reviewers. Measures were categorized into vestibular, ocular, or both (vestibular and ocular) domains, and relevant psychometric properties were documented.
Results:
Fifty-two studies were included in this review. 28 studies explored the use of vestibular measures, 12 explored ocular measures, and 12 explored both vestibular and ocular measures or explored the use of vestibulo-ocular reflex measures. Most studies explored the properties associated with balance measures, particularly the balance error scoring system. Diagnostic accuracy (sensitivity and specificity metrics) of the associated measures was the most frequently documented characteristic in the literature.
Conclusion:
Identification of clinical measures used to evaluate vestibular and ocular deficits postconcussion is needed to understand the evidence supporting their use in practice. Documenting the psychometric properties will allow clinicians and researchers to understand the status of the current literature and support for the use of certain measures in practice in terms of their ability to appropriately detect deficits in people with concussion when deficits are truly present.
