Glasses to help tired drivers stay awake

Glasses have gone on sale that are claimed to prevent drivers falling asleep at the wheel.

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The glasses have sensors that detect yawning and blinking – red lights on the glasses start to flicker and an alarm vibrates.

They can also be connected to a phone application and message passengers to warn them.

The Prudensee glasses are the brainchild of former optician Philippe Peyrard and are available from Optic 2000 in seven styles for €289.