Fighting to eliminate river blindness, the disease affecting millions of people in Cameroon

Áilín Quinlan talks to Dr Joseph Oye about his work with Sightsavers, a charity that fights avoidable blindness in places such as Cameroon

A few weeks ago, Dr Joseph Oye got a phone-call from his brother Ruben.

A mechanic who is married with six children, Reuben was worried.