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Updated: Jul 30, 2025
Using Retinal Imaging to Study Dementia
Published on: November 6, 2017
Retinal Functional and Structural Neural Indices: Potential Biomarkers for the Monitoring of Cerebral
Frank C T van der Heide1,2,3,4, Sara Mokhtar1,2,3,4, Anjani Khanna5
1CARIM School for Cardiovascular Diseases, Maastricht University (UM), The Netherlands.
Background:
If retinal indices of neurodegeneration are to be biomarkers for the monitoring of cerebral neurodegeneration, it is important to establish whether potentially modifiable risk factors for dementia are associated with retinal neurodegenerative changes.
Objective:
To study associations of dementia risk factors with retinal sensitivity, an index of retinal neural function, and retinal nerve fiber layer (RNFL) thickness, an index of retinal neural structure.
Methods:
We used cross-sectional data from The Maastricht Study (up to 5,666 participants, 50.5% men, mean age 59.7), and investigated associations with regression analyses (adjusted for potential confounders).
Results:
Most risk factors under study (i.e., hyperglycemia, unhealthy diet, lower cardiorespiratory fitness, smoking, alcohol consumption, and hypertension) were significantly associated with lower retinal sensitivity and lower RNFL thickness.
Conclusion:
Findings of this population-based study support the concept that retinal neural indices may be biomarkers for the monitoring of therapeutic strategies that aim to prevent early-stage cerebral neurodegeneration and, ultimately, dementia.
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