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Using Retinal Imaging to Study Dementia

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Alzheimer's disease: visual system review.

Denise A Valenti¹

¹Harvard Vanguard Medical Associates, Braintree, Massachusetts, USA. DeniseAValenti@gmail.com

Optometry (St. Louis, Mo.)

|December 17, 2009

Summary

This summary is machine-generated.

Early visual system changes in Alzheimer's disease (AD) offer potential biomarkers for detection before cognitive decline. Optometrists can play a key role in identifying these early signs.

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Area of Science:

Neuroscience
Ophthalmology
Gerontology

Background:

Alzheimer's disease (AD) affects millions, with significant impact on the visual system.
Understanding AD's visual manifestations aids optometrists in patient management and interdisciplinary communication.

Purpose of the Study:

To review the impact of Alzheimer's disease on the visual system.
To highlight the potential role of optometrists in early AD detection and management.

Main Methods:

Literature review of Alzheimer's disease and its effects on vision.
Analysis of visual system biomarkers in early-stage AD.

Main Results:

Visual system deficits, including nerve fiber loss and magnocellular pathway dysfunction (e.g., reduced contrast sensitivity), appear early in AD.
These visual biomarkers may enable earlier detection of AD, preceding cognitive and memory symptoms.

Conclusions:

Optometrists, as primary care providers, can significantly contribute to the diagnosis, treatment, and management of Alzheimer's disease.
Early detection through visual assessment is crucial for mitigating the devastating effects of AD.