The Guardian (October 2015)

'By providing a new way of independently assessing concussion on the field, in a matter of seconds rather than minutes, much of the doubt around the current system could be allayed,' said Professor Charmaine Childs, who leads the research team.

'Eye examinations have proved very useful in identifying things such as strokes and MS so we know there is a precedent for the eye. Retinal scanners tell you loads about the nerve fibres, the vessels, the bit that allows you to see colour, and we want to work out which of those are the key changes [for identifying concussion].'