The eyes are said by poets to be the windows to the soul but they are also windows to the brain: examining the retina gives a good idea of the state of the brain as it is directly connected to it. The miniature blood vessels in the eye will be in a very similar condition to the blood vessels in the brain. To my relief I could see that the end of the optic nerve in her eye still looked relatively healthy and not severely damaged, as did the retinal blood vessels.
