Combining information about the pattern of blood vessels in the retina with genetic data can enable accurate prediction of an individual’s risk of coronary artery disease (CAD) and its potentially fatal outcome, myocardial infarction (MI), commonly known as a heart attack. The discovery could lead to a simple screening process where an MI risk could be calculated when a person undergoes a routine eye test, researchers will tell the annual conference of the European Society of Human Genetics today (Monday).