Lend Me Your Eyes
A new app is helping blind people solve everyday problems by combining smartphones video technology and an army of armchair volunteers. \n \nWorld Hacks investigates how it works and explores whether micro-volunteering projects like this have the potential to solve all kinds of problems in the future.
Presented by Mukul Devichand.
Image caption: Vicky, who is blind, using an app to help her sew / Image credit: BBC