Cataract extraction
Cataract extraction has been studied in 3 papers since 2021: 1 observational study in people, 2 reviews; 1 in the past year. The newest paper, Jan 16, 2026: “Mental disorders associated with cataract and its surgical treatment with intraocular lens implantation: a review”.
See all 3 papers on cataract extraction
At a glance
The findings reach people, from one lab or study. 1 lab in 1 country.
“cataract extraction was associated with significantly reduced risk (hazard ratio, 0.71; 95% CI, 0.62-0.83; P < .001) of dementia compared with participants without surgery”
None of its findings points the other way.
- 1 lab in 1 country
- Funders: National Eye Institute and 3 more
- 2 of 2 findings with company ties
- Humans1
What is cataract extraction linked with?
3Studies link cataract extraction with 3 measures, most often mental disorders (1 study), Alzheimer's disease (1) and dementia (1).
Mental disorders
downin humans1
1 study
Mental disorders
downin humans1
Cataract extraction lowers the risk of mental disorders in cataract patients.
“Cataract extraction reduces this risk, improves quality of life and sleep, and promotes favorable structural and functional changes in the cerebral cortex.”
Reviewin cataract patients
Neurology Bulletin
Alzheimer's disease
downin humans1
1 study
Alzheimer's disease
downin humans1
Cataract extraction is linked with a lower risk of Alzheimer's disease in humans.
“Similar results were found with the development of Alzheimer disease dementia.”
Humansn = 3,038
Association Between Cataract Extraction and Development of Dementia
JAMA internal medicine
Dementia
downin humans1HR 0.71
1 study
Dementia
downin humans1HR 0.71
Cataract extraction is linked with a lower risk of dementia in humans (HR 0.71, 95% CI 0.62-0.83).
“cataract extraction was associated with significantly reduced risk (hazard ratio, 0.71; 95% CI, 0.62-0.83; P < .001) of dementia compared with participants without surgery”
Humansafter controlling for years of education, self-reported White race, and smoking history and stratifying by apolipoprotein E genotype, sex, and age group at cataract diagnosis23 554 person-years of follow-upn = 3,038
Association Between Cataract Extraction and Development of Dementia
JAMA internal medicine