One touching story I've read recently.
In brief, one boy couldn't distinguish colours in a proper way. The world was predominantly grey for him but one day he met a good genious of cybernatics who was eager to help the boy. They generated so many ideas to find a key solution. They worked so hard that they, of course, manage to succeed:
They created a device that pitch color assosiations. Every melody means a colour. Hence, it has changed the destiny of the child.