期刊
JOURNAL OF ALZHEIMERS DISEASE
卷 90, 期 4, 页码 1341-1357出版社
IOS PRESS
DOI: 10.3233/JAD-220596
关键词
Alzheimer's disease; biomarkers; neurodegeneration; ocular abnormalities; retinal examinations
资金
- Capital's Funds for Health Improvement and Research [CFH 2020-4-1033]
- Beijing NOVA Program [Z211100002121051]
- Beijing Natural Science Foundation [JQ19024]
- National Natural Science Foundation of China [81671040, 81970996]
Patients with Alzheimer's disease face difficulties in maintaining independent living abilities, leading to increased burden on caregivers and healthcare system. Current diagnostics are complex, expensive, and lack focus on early diagnosis quality, demanding technical improvements. Retinal imaging can offer a new approach for early detection of Alzheimer's pathology, with easy operation as an advantage.
Patients with Alzheimer's disease have difficulty maintaining independent living abilities as the disease progresses, causing an increased burden of care on family caregivers and the healthcare system and related financial strain. This patient group is expected to continue to expand as life expectancy climbs. Current diagnostics for Alzheimer's disease are complex, unaffordable, and invasive without regard to diagnosis quality at early stages, which urgently calls for more technical improvements for diagnosis specificity. Optical coherence tomography or tomographic angiography has been shown to identify retinal thickness loss and lower vascular density present earlier than symptom onset in these patients. The retina is an extension of the central nervous system and shares anatomic and functional similarities with the brain. Ophthalmological examinations can be an efficient tool to offer a window into cerebral pathology with the merit of easy operation. In this review, we summarized the latest observations on retinal pathology in Alzheimer's disease and discussed the feasibility of retinal imaging in diagnostic prediction, as well as limitations in current retinal examinations for Alzheimer's disease diagnosis.
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