Early signs of Alzheimer's disease through the lens of the eye

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Alzheimer's disease is a neurodegenerative disease in which abnormal proteins are produced in the brain, killing the brain and triggering connections between neurons. Symptoms include memory loss, hallucinations, hallucinations, and other dementias. Symptoms may also include decreased visual acuity and localization problems, visual impairments such as sensitivity, color vision, and deep understanding.

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Alzheimer's disease has significant financial implications and is a leader in Medicare reimbursement. 1 in 5 Medicare payments to a patient. According to the National Institute on Aging, approximately 5.5 million people in the United States are at risk for developing Alzheimer's disease. By 2060, the number of Americans with Alzheimer's disease nearly tripled, reaching 15 million. Currently, Alzheimer's disease is usually diagnosed by autopsy. While regular eye exams can help predict Alzheimer's disease long before symptoms appear, doctors may have more time to slow the infection.

Daily eye exams are essential for vision and eye health, as well as a wide range of health concerns, from ambiguity and illness to cardiovascular disease. In fact, when a patient has an eye exam, doctors examine the body without distraction, giving them the opportunity to diagnose the most frightening conditions today, often long before symptoms appear.

The secret lies in the test itself. During an eye exam, your optometrist will not only check your vision, eye movements, and external vision, but will also check your eye height, eye topography, retina, and optic nerve. This way, the optometrist or optometrist can see the signs of a neurological disorder that affects the whole body, affecting the brain, heart, etc.

Eye-brain connections

A 2017 study found that older people with blindness were 2.8 times more likely to develop dementia or schizophrenia. The difficulty in diagnosing Alzheimer's disease and other dementias is spurring research on eye-brain connections. Vision and experience diminish with age, raising questions about their relevance. There is currently no eye test that can diagnose Alzheimer's disease, but research is still ongoing that shows a link between eye health and brain nutrition and may help diagnose Alzheimer's disease.

For example, a recent study found that people with macular degeneration, glaucoma, or diabetic retinopathy are more likely to be diagnosed with Alzheimer's disease than others. These three conditions are degenerative. In other words, it gets worse over time. And we all have more of them with age.

A 2018 study by the University of Washington and the Kaiser Permanente Washington Department of Health found that people over 65 were 5 years older. Participants with one or more of these eye conditions had a 40-50% higher risk of developing Alzheimer's disease than other participants. This study does not reveal cause and effect but indicates the link. Additionally, a study published in Alzheimer's and Dementia in 2019 looked at data from a study on attitudes of older people. The researchers targeted 3,800 participants with or without eye disease at the start of the study. About 792 of them develop dementia. Researchers have found that people with age-related macular degeneration are 20% more likely to develop dementia than others. Patients with diabetic retinopathy are 44% more likely to cause more damage than others. In this study, people with a recent diagnosis of glaucoma (not participants with a definitive diagnosis) had a 44% higher risk of dementia. It is not known why there is a difference in people with new or pre-existing conditions.

A study of more than 200 people at the Duke Eye Center found that differences in cognitive dementia can occur in the arteries of the eye. Researchers found that a group of people with Alzheimer's disease had fewer small blood vessels in the back of their eye and a retinal layer. People with mild mental illness did not report these changes. Scientists have found that small changes in blood vessels can affect changes in small blood vessels in the brain.

This study shows that the eyes connect to other parts of the body, including the brain, and thus provide a window into health. The optic nerve and the retina are the brain tissues that extend outside the brain. Alzheimer's disease and dementia, caused by damage to the cerebral cortex, appear to affect the retina. Source

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