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Zheng and coauthors investigate how visual impairment and cognitive function are associated with each other over time in a longitudinal study of 2520 older US adults. Visual impairment was associated with declining cognitive function cross-sectionally and over time, with worsening vision having a stronger association with declining cognition than vice versa. The findings suggest visual impairment is adversely associated with future cognitive function in older adults, underscoring the importance of maintaining good vision to mitigate age-related cognitive declines.
CME Journal Club
Recognizing that cataracts are the most common cause of impaired vision worldwide and may increase a driver’s risk of a serious traffic crash, Schlenker and coauthors evaluate if cataract surgery in a driver is associated with reduced serious traffic crashes. In a population-based study of 559 546 patients who received at least 1 eye cataract surgery, the crash rate decreased from 2.36 per 1000 patient-years in the baseline interval to 2.14 per 1000 patient-years after surgery, representing a 9% reduction in serious traffic crashes. The results, while not designed to determine a causal relationship of cataract surgery and serious traffic crashes, suggest cataract surgery is associated with a patient’s reduced subsequent risk of serious traffic crash as a driver.
Highlights. JAMA Ophthalmol. 2018;136(9):965. doi:10.1001/jamaophthalmol.2017.3743
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