Vice Season 4 Episode 4 : Beating Blindness & White Collar Weed

'Beating Blindness' - Doctors and researchers are making incredible strides in the fight against blindness. New assistive technologies and advances in surgical techniques mean that many patients who've lost sight entirely can now regain visual perception, and the independence that comes with it--a process that can be as disorienting as it is freeing. Isobel Yeung reports from the front lines of this latest medical frontier. 'White Collar Weed'...