To celebrate the arrival of 2020, we're featuring three fascinating stories about vision. See what we did there? But these people do not have 20:20 vision, there is nothing average about the way they view things.

Take Jason Padgett, after a severe brain injury he was left with the ability to 'see' maths. Everywhere he looked he could see mathematical shapes. Dr Kate Stone woke up from a coma shocked to the core about the way people saw her and Helena Ndume has a wonderful job, she helps to restore people's sight.

Presenter: Jo Fidgen

Picture: Glasses and a wintry scene

Credit: Getty/ Pick Uppath