Gaurav Vishwas, who hails from Kannauj district of Uttar Pradesh, has created a device that could revolutionise the lives of the visually impaired. The 16-year-old has invented a device that could be installed in eye glasses, which could help the blind know about any obstacle up to a distance of 1 meter. This invention could help them do away with a walking stick. It was Gaurav's childhood dream to become a scientist. Having a laboratory in his house, he hopes to achieve his goal some day in future.