Women undergoing IVF treatment are three times more likely to have a baby through a new technique that scientists are claiming as the biggest fertility breakthrough for 35 years.
The advance means that couples treated by the new method could have a 78 per cent chance of success, compared with average "live birth" IVF rates of around 25 per cent in Britain, they say.
The technique uses "time-lapse imaging" to take thousands of photographs of developing embryos and pinpoint those least likely to carry chromosomal abnormalities. Only those most likely to result in a healthy pregnancy are then implanted.
The scientists behind the study said it was "the most exciting and significant development for all patients seeking IVF" in at least 35 years.
The technique, which is being used in four clinics in England, is expected to dramatically improve success rates.