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Amid the rising number of dementia cases across the world, new research has made some shocking revelations. Scientists have found that rapid decline in vision can be a sign of dementia.
Amid rising cases of dementia across the world, new research has made some shocking revelations. Scientists have found that rapid decline in vision can be a sign of dementia. That is, people whose vision is deteriorating rapidly are at a higher risk of developing dementia.
This research conducted by scientists at Johns Hopkins Bloomberg School of Public Health in the US found that 20 percent of people aged 71 years or older showed that as their vision deteriorated, their memory also deteriorated. Researchers said that earlier studies had found a link between hearing loss and dementia, but the fact that the effect of poor vision on the brain is the cause of dementia is a new revelation.
How was the study conducted?
The researchers gave the people involved in the study the task of remembering pictures. Among those who had poor distant vision, 5 percent showed symptoms of dementia. Whereas, 10 percent of those with nearsightedness and 15 percent of those with blurred vision had memory problems. The researchers said that if the poor vision of these participants was taken seriously, dementia could have been prevented in about 20 percent of cases.
What are the symptoms of dementia?
Dementia is a disease in which brain cells slowly deteriorate, affecting memory, thinking ability, and decision-making. Some common symptoms of dementia include:
– Loss of memory
– Difficulty in learning new things
– Loss of items
– Language problems
– Losing sense of time and place
– Difficulty in making decisions
– Mood
– Changes in personality
The connection between vision and the brain
This research shows that eyes are not just for seeing, but are also connected to the brain. Information received from the eyes stimulates the brain and helps keep it healthy. When vision is weak, the brain receives less stimulation, which makes brain cells less active and increases the risk of dementia.