A new study found that changes in vision may be an early warning signal of dementia, which appears at 12 years before the diagnosis. Researchers say that simple eye tests can help detect the disease before memory problems begin.

Demstructation is a group of brain disorders that causes a decline in a person’s memory, thinking ability, cognitive skills, logic, etc. with age. It is a progressive syndrome that worsens over time, affects a person’s behavior. While there is no cure for dementia, there are drugs to help with symptoms.

The study published in the Peer-Review Journal Scientific Reports held at Norfolk, England admitted 8,623 healthy participants for many years.

By the end of the study, 537 people developed dementia. Researchers found that later dementia developers performed poorly on a visual sensitivity test taken at the beginning of the study.

Participants need to press a button when they formed a triangle in the field of dots. Those who develop dementia were quite slow in spotting the shape.

Why vision and dementia are connected

Researchers believe that Alzheimer’s disease, the most common form of dementia, begins with the manufacture of toxic amyloid plaques or harmful proteins in the brain. These planetary pieces can first affect visually related areas before damaging areas related to memory. This can explain why vision problems can be seen long before memory issues.

Other vision-related problems associated with Alzheimer’s outlines (opposite sensitivity) and difficulty in distinguishing between certain colors include difficulty seeing, especially in the blue-green spectrum. Many people cannot notice these gradual changes.

Another initial sign of Alzheimer’s is difficulty in controlling eye movements. People with dementia can struggle to ignore the distractions and have disabled eye movement patterns when looking at new faces.

In healthy individuals, the eyes naturally scan from the eyes to the mouth when they meet a new one. However, people with dementia cannot follow this pattern, making it difficult to identify the faces later.

Some doctors can only recognize dementia in patients by observing their eye movements. People with dementia may lose as they do not actively scan their environment, making it difficult to process new information.

Can eye movements improve memory?

Researchers are also looking for whether creating purposeful eye movements can help promote memory.

Some studies suggest that watching television and reading, which consistently includes eye movements, can be linked to better memory and low risk of dementia. In addition, quick left-right eye antics have been found to improve memory recall, although this effect seems to be to benefit the right hand people more.

Despite these findings, using eye activities as a clinical tool for dementia is not yet common.

Eye-tracking technology is expensive and special training is required to analyze the results. The eye tests to detect Alzheimer’s detection will probably be limited to research settings until the more inexpensive and user -friendly equipment is available.