The eye's structure holds information about the health of the mind

BECAUSE it is locked away inside the skull, the brain is hard to study. Looking at it requires finicky machines which use magnetism or electricity or both to bypass the bone. There is just one tendril of brain tissue that can be seen from outside the body without any mucking about of this sort. That is the retina. Look into someone's eyes and you are, in some small way, looking at their brain. This being so, a group of researchers at Moorfields Eye Hospital in London, working with others around ...