CES 2014: Mobile game 'controlled using eyes'
8 January 2014 Last updated at 11:27 GMT
The Eye Tribe Tracker is billed as a low-cost - $99 (£60) - accessory for tablets which enables you to control devices using your eyes.
In this demo from CES 2014, the Eye Tribe's Anders Bo Pedersen has a go on popular mobile game Fruit Ninja, which is typically played by using your finger to swipe fruit.
Currently, the Eye Tribe Tracker is only available on Windows-based tablets, but the company says it hopes to make it available on other platforms soon.