Visually impaired runners are using AI powered smart glasses as they prepare for the London Marathon. The glasses are not designed specifically for sight loss, but their cameras, microphones, speakers and AI features are being used to provide spoken information about surroundings during training and daily life. (AP video shot by: Mustakim Hasnath) Subscribe: http://smarturl.it/AssociatedPress Read more: https://apnews.com​ This video may be available for archive licensing via https://newsroom.