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dc.contributor.authorWood, Joanne M.
dc.contributor.authorChaparro, Alex
dc.contributor.authorAnstey, Kaarin J.
dc.contributor.authorLacherez, Philippe
dc.contributor.authorChidgey, Aaron
dc.contributor.authorEisemann, Jared
dc.contributor.authorGaynor, Alison
dc.contributor.authorLa, Peter
dc.identifier.citationWood, J.M., Chaparro, A., Anstey, K.J., Lacherez, P., Chidgey, A., Eisemann, J., Gaynor, A., & La, P. (2010). Simulated visual impairment leads to cognitive slowing in older adults. Optometry and Vision Science, 87(12), 1037-1043. doi: 10.1097/OPX.0b013e3181fe64d7
dc.identifier.otherdoi: 10.1097/OPX.0b013e3181fe64d7
dc.descriptionClick on the DOI link below to access the article (may not be free).
dc.description.abstractPurpose. To investigate the impact of different levels of simulated visual impairment on the cognitive test performance of older adults and to compare this with previous findings in younger adults.Methods. Cognitive performance was assessed in 30 visually normal, community-dwelling older adults (mean = 70.2 +/- 3.9 years). Four standard cognitive tests were used including the Digit Symbol Substitution Test, Trail Making Tests A and B, and the Stroop Color Word Test under three visual conditions: normal baseline vision and two levels of cataract simulating filters (Vistech), which were administered in a random order. Distance high-contrast visual acuity and Pelli-Robson letter contrast sensitivity were also assessed for all three visual conditions.Results. Simulated cataract significantly impaired performance across all cognitive test performance measures. In addition, the impact of simulated cataract was significantly greater in this older cohort than in a younger cohort previously investigated. Individual differences in contrast sensitivity better predicted cognitive test performance than did visual acuity.Conclusions. Visual impairment can lead to slowing of cognitive performance in older adults; these effects are greater than those observed in younger participants. This has important implications for neuropsychological testing of older populations who have a high prevalence of cataract.
dc.publisherAmerican Academy of Optometry
dc.relation.ispartofseriesOptometry and Vision Science
dc.titleSimulated visual impairment leads to cognitive slowing in older adults

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