Thinning of the lining of nerve cells in the back of the eye–retina–has a strong link with Parkinson's disease says a new study that can boost the diagnoses to detect the disease in its early stages. According to the new study the thinning of the retina is linked to the loss of brain cells that produce dopamine a substance that helps control movement. And movement is one of the first indicators of the Parkinson's disease that impairs mechanical abilities. Our study is the first to show a link between the thinning of the retina and a known sign of the
