An X-ray treatment that could save the sight of thousands is being trialled on the NHS.
The 15-minute procedure has been shown to halt wet age-related macular degeneration, one of the most common forms of blindness in the elderly.
Around 250,000 suffer from this debilitating condition which, if not treated, can cause loss of sight in just three months.
But early trials of the new procedure in Mexico and the UK have shown that it could halt the progression of the condition immediately, saving the UK NHS £300million a year.
The trials on 60 people in Mexico showed that half did not need any more treatment while the remainder needed infrequent injections – only a few each year.