ArticleInternational journal of geriatric psychiatry2026
Dementia Risk After Glaucoma Surgery and Medical Therapy: A Multicentre Real-World Cohort Study.
Article in International journal of geriatric psychiatry, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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8 authors.
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Abstract
background and purposeGlaucoma, a neurodegenerative optic neuropathy and leading cause of irreversible vision loss, shares vascular and neurodegenerative mechanisms with dementia. The 2024 Lancet Commission newly identified visual impairment as a modifiable dementia risk factor. As glaucoma management ranges from long-term medical therapy to laser/surgical intervention, it remains uncertain whether treatment modality influences long-term systemic outcomes such as dementia. This study compares dementia risk in patients receiving glaucoma surgery versus medical therapy.
methodsGlaucoma patients aged ≥ 40 years and diagnosed and managed before July 2021 were identified in the TriNetX database and followed from the first definitive treatment-surgery or initiation of medical therapy-until dementia diagnosis, death, or July 2026. The primary outcome was all-cause dementia; secondary outcomes included Alzheimer's disease, vascular dementia, and visual loss. Subgroup analyses examined surgical timing, modality, age, sex, and comorbidities.
resultsAfter 1:1 propensity score matching, 51,923 patients were included in each cohort (mean age 64 years; 55.3% female). Glaucoma surgery was associated with reduced risks of all-cause dementia (HR 0.81) and vascular dementia (HR 0.53), a non-significant reduction in Alzheimer's disease (HR 0.87), and a higher risk of visual loss (HR 1.52), consistent with more advanced disease among surgical candidates. Associations were stronger with late surgery, traditional incisional procedures, younger age, and absence of comorbidities.
conclusionsPatients who underwent glaucoma surgery were associated with a lower subsequent risk of all-cause dementia and vascular dementia, with a non-significant trend for Alzheimer's disease, compared with those receiving medical therapy. These findings suggest that surgical management is associated with more favourable long-term cognitive outcomes beyond ocular benefits, which may provide additional context for treatment-escalation decisions in suitable patients.
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