Vibrating wristbands could help visually impaired people to avoid collisions, according to a study published in JAMA Ophthalmology.

The Guardian reports that researchers have developed a chest-mounted video camera linked to a processing unit, and a pair of vibrating wristbands.

When the system detects a hazard in the wearer’s path, the wristband on the same side as the hazard vibrates. If the obstacle is straight ahead, both wristbands vibrate.

The researchers said the device was not designed to replace canes or guide dogs, but rather to provide additional benefits, including helping wearers to avoid hazards above ground level.

The researchers reported that a study of 368 hours of walking video data from 31 blind or partially sighted participants indicates that the approach could be helpful.

Read the full article at: www.theguardian.com