Scientists have unveiled a prototype mobile phone that allows user to make and receive calls, and even play music, just by moving their eyes.

The prototype device has special electrodes -- that can pick up the movement of the eye -- attached to the earphones.
Eyes have "electrical potential" - positive at the cornea and negative at the retina - which changes depending on the movement of the eyeball.
The earphone electrodes are able to read these changing currents - known as an electrooculogram - and the mobile phone is pre-programmed to translate the information into a command.
Hence, a user can make or receive a call, simply by moving the eyes.
Similarly, music stored on the mobile phone can be played, paused or song skipped using eyeball movement - shifting the eye right and then left will play or stop a track.
The volume can be increased by moving the eyes clockwise and decreased by rotating eyes anti-clockwise.
The system works even when a person's eyes are closed, the Telegraph reported.
A spokesman for NTT DoCoMo, a Japanese mobile phone operator, which unveiled the prototype, said, "the system is only a prototype, but it provides an insight into the way we might be using our phones in years to come."
{{/usCountry}}A spokesman for NTT DoCoMo, a Japanese mobile phone operator, which unveiled the prototype, said, "the system is only a prototype, but it provides an insight into the way we might be using our phones in years to come."
{{/usCountry}}"In future, phones will be worn like accessories. We're keen to find new natural-gesture interfaces and clever ways of interacting with these devices to suit this anticipated future use," the spokesman said.