All factors
Vision loss
Uncorrected vision impairment is associated with a 37% increased risk of cognitive decline.
Population risk1.8%
Evidence grademeta analysis
Why it matters
Poor vision limits reading, social engagement and physical activity, each of which protects the brain independently.
What to ask at the checkup
Ask whether a full eye exam is due and whether the current prescription is still correct
Screening: Visual acuity test (Snellen chart)
Sources
Association of visual impairment with cognitive decline and dementia: a systematic review and meta-analysis
Shang E, Zhu Z, Liu X et al.. Journal of Neurology, 2021.
Poor vision that goes uncorrected raised dementia risk by about a third.
DOIAbstract only
Routines for this factor
Book the eye exam
Call or go online and book a full eye exam.
5 min, difficulty 1/3