Scientists in the United Kingdom have managed to restore sight in people born with a previously incurable form of blindness.

They have used gene therapy to help people with Choroideremia, which affects an estimated one in 50,000 people - mostly men.

The experimental study attempts to correct the underlying gene defect of the patients, and modify it.  

Al Jazeera's Emma Hayward reports from Oxford.

Source: Al Jazeera