Is the eye the mirror to the heart ?

The University of Edinburgh is conducting a study to determine whether scanning blood vessels in the eyes can help detect heart disease

The researchers will use high def eye scans of  patients suspected of having heart disease. They will look for signs like changes in blood vessel width or suspicious branching, which may be linked to heart disease. Developing this type of method could avoid the need for invasive procedures such as biopsies and angiograms.