Electric lollipop helps blind see

London: An electric lollipop that allows the blind to 'see' using their tongue has been developed by scientists.

The extraordinary device converts images captured by a tiny camera into a series of electrical tingles, which can be felt on the tongue.

Nerves then send these messages to the brain, which turn the tingles back into pictures.

After only a day's practice, those using the machine were able to make out shapes, movement and read signs. Some were even able to interpret objects after just 15 minutes of training.

One blind man, who was testing the device, is reported to have cried when he read his first letter.

The BrainPort device, which is expected to go on sale later this year, is unlikely to replace guide dogs or walking sticks, but could dramatically improve the lives of those with sight problems.

Dr William Seiple, of Lighthouse International, which has been testing the device, said four blind volunteers had quickly learned how to find doorways and the buttons on a lift, pick out knives and forks, and read letters and numbers.

They were also able to pick out cups and forks at the dinner table without having to fumble.

Dr Seiple said: "At first, I was amazed at what the device could do. One guy started to cry when he saw his first letter."

The device could be approved for sale in the US by the end of the year and would cost around £6,000.