Is this the solution for kids' car-travel sickness？
French brand Citroen reckons it's cracked the problem of car-motion sickness with something as simple as a pair of glasses.
Motion sickness - or "kinetosis" - affects one in three people some time during their lives.
The "Seetroen" (you can see what they've done there) glasses are claimed to be a tested paramedical solution with 95 per cent effectiveness.
Liquid in the glasses simulates the horizon, resolving the conflict between the senses that causes motion sickness.
Mind resynchronises with movement perceived by the inner ear while the eyes are focused on an immobile object.
The rings that surround the eyes both along the frontal axis (right/left) and sagittal axis (front/back) contain a coloured moving liquid.
The liquid simulates the horizon and resolves the conflict between the senses that causes the sickness.
As soon as initial symptoms of motion sickness are experienced, the glasses should be worn. After 10-12 minutes, the glasses will allow the mind to resynchronise with the movement perceived by the inner ear while the eyes are focused on an immobile object such as a smartphone or a book.
Technology in Seetroen glasses is derived from maritime use.
The glasses can then be removed for the remainder of the journey.
They can only be used by adults and children aged 10 or over, as this is when the inner ear has finished growing. There are no lenses in the glasses so they can be shared with others - or worn over prescription glasses.