Studying blood vessels in the eye is also useful in detecting and understanding diseases that affect the human circulatory system such as high blood pressure, diabetes and heart disease.įor example, with further research, we may soon be able to identify people with undiagnosed high blood pressure through pictures of their retina, thus enabling a doctor to prescribe appropriate medication and considerably reduce their risk of having a future heart attack or stroke.Ģ3 Sep 20. Subtle changes in the retina may reflect similar processes happening and these early signs may precede declining brain health by years or even decades. We are researching how we can use information from images of the retina to understand what is happening in the brain. These anatomical structures are shared with the brain, but where they are much less accessible. The back of the eye is called the retina and is one of the few places in the human body allowing easy observation of blood vessels and nerves. However, we analyse these images in more detail to see what other information they could reveal about the health of human body and brain. Similar types of imaging are performed at a high street optician for a standard eye health check-up. Light reflected back leaves the same way to be collected by the machine creating an image of the retina. Light from very low-power lasers or a camera flash enters the eye through the pupil.
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