Difficulty judging distances, writing, and recognizing moving and stationary objects may be indicative of the development of Alzheimer’s disease. Scientists from the University of California in the USA reached these results. results published In The Lancet.
Alzheimer’s disease is generally thought to be a disease that initially manifests itself as forgetfulness, difficulty remembering recent events, and confusion. But researchers found that some people may have a lesser-known early symptom of the disease: vision problems. These include difficulties judging distances, distinguishing between moving and stationary objects, and writing.
This became known in a study based on examining the medical records of more than a thousand people from 16 different countries. Scientists estimate that these symptoms may explain up to 10% of Alzheimer’s disease cases. The average age of typical onset of symptoms associated with visual impairment is 59 years old. This is six years earlier than the average age at which Alzheimer’s disease is usually diagnosed.
The most likely truth is that the retina degenerates in Alzheimer’s disease because it is a part of the human nervous system. This degeneration causes neurofunctional changes that can be detected at an early stage.
Many people between the ages of 50 and 60 view vision deterioration as part of the natural aging process, the researchers noted. Therefore, it becomes difficult to diagnose the disease long before the characteristic symptoms appear. It may take a long time for an ophthalmologist to notice unusual abnormalities in visual test results and refer the person to a neurologist.
Previous scientists I found a way Detecting Alzheimer’s disease 15 years before symptoms appear.