Potential Retinal Biomarkers in Alzheimer's Disease.

Area of Science:

• Ophthalmology
• Neurology
• Biomarker Discovery

Background:

• Alzheimer's disease (AD) diagnosis remains a significant challenge, necessitating early detection for effective treatment.
• Current diagnostic methods for AD face limitations, impacting timely intervention.
• The retina is increasingly recognized as a potential noninvasive window to the brain for detecting neurological changes.

Purpose of the Study:

• To review the diagnostic challenges in current Alzheimer's disease (AD) evaluations.
• To explore the potential of retinal alterations as early indicators for AD.
• To highlight the importance of identifying retinal biomarkers for early AD diagnosis.

Main Methods:

• Comprehensive literature review of studies on AD diagnosis and retinal imaging.
• Analysis of research investigating retinal biomarkers for neurodegenerative diseases.
• Examination of challenges in differentiating AD-specific retinal changes from other retinal conditions.

Main Results:

• The retina presents a viable, noninvasive avenue for early AD detection.
• Similarities between AD-related retinal changes and other retinal diseases complicate the identification of specific biomarkers.
• Significant progress is being made in understanding retinal alterations in AD.

Conclusions:

• Retinal examination holds considerable promise for the early diagnosis of Alzheimer's disease.
• Overcoming diagnostic challenges requires identifying specific AD-related retinal biomarkers.
• Further research is crucial to advance the use of retinal analysis in AD diagnostics.