Doctors have used thin sheets of cheek tissue to restore vision in people with damaged corneas.
A team from Osaka University transplanted thin layers of cheek cells onto the eyes of four patients with a rare and painful eye condition. The patients, whose vision had been cloudy, could see well afterwards, and their 'new corneas' were still clear more than a year later.

The Osaka team hope their work may also lead to other types of grow-your-own tissue transplants...