"An experimental transplant of cells into the eyes of patients with failing sight improved vision in most of them, US researchers say.

The retinal cells, taken from aborted foetuses, were implanted into 10 people with retinitis pigmentosa and age-related macular degeneration.

The American Journal of Ophthalmology study found seven had better - although still seriously impaired - vision.

A UK expert said successful retinal transplant is science's "holy grail"."

http://news.bbc.co.uk/2/hi/health/7501510.stm