What Alzheimer’s Disease Can Reveal About Your Eyesight
Alzheimer’s disease can trigger changes in your loved one’s vision, such as color perception, peripheral vision, motion detection, and depth perception. Getting annual Alzheimer eye tests will help you detect and treat the early signs of eyesight problems sooner. Read more to learn about the eyesight related problems that Alzheimer’s can cause.
How Does Alzheimer’s Disease Affect Your Eyesight?
A person’s eyesight can identify the disease even before they develop the symptoms. If the retinal nerve of the eye that comes out of the brain becomes narrower, they may have the onset of Alzheimer’s disease. The beta-amyloid protein accumulation in the brain is the first noticeable sign of Alzheimer. They start to develop 15 to 20 years before the onset of the Alzheimer’s and can be identified through brain imaging technique.
The thickness of the retina can be examined to confirm the disease, as patients with Alzheimer’s disease will have thinner retina. You can experience blurry vision, which leads to the loss of sharpness of eyesight, making the objects you see appear out of focus or foggy.
What Kind of Eyesight Problems Can Alzheimer Cause?
An Alzheimer’s patient can experience four common vision deficits, which can cause them to make mistakes in perceptions, including:
- Unable to Detect Motion
Some patients cannot detect movement. Watching television and fast motion activities, become challenging for them. This will eventually make them feel confused or lost, even around their family members and friends.
- Depth Perception
Judging distances, changes in elevation, or differentiating between a three-dimensional object and a flat picture can be challenging for patients with Alzheimer. Poor depth perception is prominent when they try to pick up the flowers on a floral fabric or a see-through bottle filled with water on a glass table. Their attempt to get those things can result in severe injuries.
- Reduced Peripheral Vision
The field of vision narrows for people as they age, but for those with Alzheimer’s disease, it narrows dramatically. They may be unable to see the things at the bottom, top, and on the sides. As a result, they may tend to bump into things.
- Difficulty Identifying Colors
Alzheimer’s patients have a hard time recognizing colors and experience trouble picking out the objects that are of similar color. Caregivers should try to keep different-colored objects around Alzheimer’s patients to keep them at ease. For example, if you are going to serve a beverage to them, make sure the color of the liquid is not the same as the color of the glass you choose to serve.
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