Research shows that the retina, which is closely related to many functions of the brain, gives the first clue in nervous system diseases such as Alzheimer's and Parkinson's. Since the optic nerve and retina are the continuation of the brain tissue, the eye is now used as a model in the diagnosis and treatment of many brain diseases. The damage caused by these types of diseases in the brain is evident in some layers inside the eye. Eye examination plays an important role in early diagnosis. The retina at the back of the eye has 10 layers. Studies show that the thinning (weakening) of certain parts of these layers is parallel to the damage caused by Parkinson's and Alzheimer's diseases in nerve cells in the brain. These diseases can be detected with retinal scanning with a device called OCT and retinal examinations called FAF, without any neurological findings.”
Healthy people have thick layers of the retina of the eye, whereas those with the first stage of nervous system diseases such as Parkinson's can detect these diseases. It becomes a thin layer due to the cell death of its layers. If these findings are detected with the OCT test performed in the eye examination and treatment is started, the onset of the diseases can be delayed; He said that in cases where the disease has started, it can be made to pass milder. For example, in macular degeneration, a protein called Beta Amyloid, which causes Alzheimer's disease, was found in the spots (pattern) on the retina. Physicians recommend that those with chronic brain and eye diseases in their family should have detailed examinations and tests once a year.
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