What is Waardenburg Syndrome?

It is commonly said that the eyes are the window to the soul. For some people, having distinct and brilliant blue eyes is simply a matter of colour. For others, it’s a symptom of a rare condition known as the Waardenburg Syndrome. It could also mean that a person is deaf or has some degree of hearing loss. The BBC’s Dorcas Wangira met children in a special school in Kenya and siblings in Ghana with this condition to bring you this report.