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Home / Health News / Your eye health can be a precursor for Parkinson’s disease

Your eye health can be a precursor for Parkinson’s disease

Researchers say that thinning of retina could determine Parkinson's disease early.

By: Debjani Arora   | | Published: August 18, 2018 2:18 pm
Tags: Eye health  Parkinson's  Retina  Retinal cells  
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The AI-based test can detect glaucoma progression 18 months earlier than the current gold standard method. © Shutterstock

The American Academy of Neurology supported by the Seoul Metropolitan Government – Seoul National University Boramae Medical Center and the Korean Ministry of Education, Science and Technology, conducted a study that says thinning of retina of our eyes is linked to early Parkinson’s disease. The study was published recently in online issue of Neurology®, the medical journal of the American Academy of Neurology. Also Read - Parkinson’s Disease — Do Not Ignore These Warning Signs And Symptoms

Jee-Young Lee, study author, from the Seoul Metropolitan Government – Seoul National University Boramae Medical Center in South Korea said to a section of media, “Our study is the first to show a link between the thinning of the retina and a known sign of the progression of the disease — the loss of brain cells that produce dopamine. We also found the thinner the retina, the greater the severity of disease. These discoveries may mean that neurologists may eventually be able to use a simple eye scan to detect Parkinson’s disease in its earliest stages, before problems with movement begin.” Also Read - Parkinson’s treatment in women: Smoking cessation drug cytisine may treat the condition



The researchers worked with 49 people who were diagnosed with Parkinson’s disease two years earlier but hadn’t yet started medication. The average age of these participants was 69 years. The data obtained from these participants was than compared with that of 54 people of the same age but without Parkinson’s. Also Read - Prevent cognitive decline: Go for routine eye scans if you have type 1 diabetes

Each participant was asked to undergo a complete eye exam as well as high-resolution eye scans. These eye scans use light waves to take high resolution pictures of each layer of the retina. It was seen that 28 out of the 49 participants with Parkinson’s also went through dopamine transporter positron emission tomography (PET) imaging so that scientists could determine the density of dopamine-producing cells in the brain.

However, the results of the study indicated that the thinning of retina especially that of the two inner layers of the five total layers, was strongly evident in those suffering from Parkinson’s along with loss of dopamine-producing brain cells.

More evidence is needed to confirm the findings and to determine just why retina thinning and the loss of dopamine-producing cells are linked, said the researcher. It more studies produce similar results then retina scans may not only allow earlier treatment of Parkinson’s disease but more precise monitoring of treatments that could slow progression of the disease as well, think the researchers.

The research team notes that a limitation of this research is how the retina scans focused only on a limited area of the retina. The study was done quickly and also did not follow participants over a long period of time.

Image source: Shutterstock 

Published : August 18, 2018 2:18 pm
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