Scientists use stem cells to regenerate human corneas

Scientists have developed a new technique to regrow human corneas. Using key tracer molecules, researchers have been able to hunt down elusive cells in the eye capable of regeneration and repair. They transplanted these regenerative stem cells into mice - creating fully functioning corneas. Writing in the journal Nature, they say this method may one day help restore the sight of victims of burns and chemical injuries.
Background:
Scientists use stem cells to regenerate human corneas [BBC]
Researchers regrow corneas using adult human stem cells [Fox News]