In this study, cataract extraction was found to be linked with lower risk of developing dementia among older adults.

• In this cohort study of 3,038 adults 65 years of age or older with cataract enrolled in the Adult Changes in Thought study, researchers investigated if cataract extraction was linked with decreased risk of dementia among older adults.

• A lower risk of developing dementia (hazard ratio, 0.71; 95% CI, 0.62-0.83) was found in participants who underwent cataract extraction, vs those who did not have cataract surgery, post-controlling for numerous additional risks.

• In comparison, no difference was seen in the risk of dementia between participants who did or did not have glaucoma surgery, which does not restore vision.