Vision from the Bottom aims to bypass the costs of customized eyeglasses and vision screening by implementing a social business model and supply chain network to deliver easy, inexpensive and effective vision correction to people in Cambodia. Using recent innovations in self-refraction technology for vision screening and standardized eyeglass products for vision correction, Vision from the Bottom will provide job training for vision vendors—a door-to-door community-based sales force for self-adjustable glasses. Vision vendors will also provide a basic eye-disease detection test and can consult and coordinate visits to eye clinics or hospitals for patients who need further care. Vision from the Bottom will apply an incentive-based, scale-up supply chain so vision vendors who achieve higher sales are provided with more discounts when acquiring these self-adjustable glasses for the purposes of selling them to customers, and they will also be promoted to a higher position.
ElectroSan: Recovering Nitrogen from Urine in Nairobi, Kenya (UC Berkeley)
4.6 billion people across the developing world lack adequate treatment of their feces and urine. ElectroSan will apply electrochemical cells that recover nitrogen from human