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Assessing Older Adults' Functional Visual Performance Using the Performance Quality Rating Scale.
OTJR : Occupation, Participation and Health 2023 December 31
Visual impairment has distinct impacts on the activities of older adults. Quantifying the functional impact of visual loss would facilitate targeted rehabilitation. The objectives of this study were to: (1) develop an observational assessment of the functional visual performance of older adults using the Performance Quality Rating Scale (PQRS); (2) test the feasibility and inter-rater agreement in a pilot sample of older adults with visual impairment. A convenience sample of older adults with vision loss ( N = 20) performed seven pre-selected activities. Performance was videoed ( N = 126 videos) and rated by two raters using specific operational definitions. All participants completed the seven activities with the given resources and 90% of videos were successfully rated using the developed PQRS. Inter-rater agreement was substantial (weighted Kappa = 0.71; 95% confidence interval [CI] = [0.64, 0.79]) for all activities. The developed PQRS for functional vision is feasible, with substantial inter-rater agreement, to assess functional vision of older adults in an outpatient setting.
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