Journal of the American Geriatrics Society
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Randomized Controlled Trial Comparative Study
Older people contact more obstacles when wearing multifocal glasses and performing a secondary visual task.
To determine whether wearing multifocal glasses affects obstacle avoidance and eye and head movements during walking with and without a secondary visual task in older people. ⋯ The findings demonstrate that older adults contact more obstacles while walking with their attention divided when wearing multifocal glasses. This is probably because of a failure to adopt a compensatory increase in pitch head movement, resulting in blurred vision of obstacles viewed through the lower segments of multifocal glasses.