Exciting work here. Not sure if you have come across the Index Awards where there are companies and individuals working along similar lines to yourselves. Here are a few links that may be useful.

http://designtoimprovelife.dk/touch-sight/
Touch Sight provides the visually-impaired with an opportunity to “see” images on an advanced Braille interface that displays images as embossed surfaces that the user can touch. It also records sound for three seconds after pressing the shutter button allowing the user to use the sound as a reference when reviewing and managing the photos.

http://designtoimprovelife.dk/be-my-eyes-app-crowdsources-vision-for-the-blind/
Sometimes all you need to do to find assistance is let someone know you need it. That’s exactly the principle behind Be My Eyes, the app that connects sighted people who can lend their eyes to the blind in times of need.
Imagine the frustration of being blind and needing to view something as basic as allergen information on a food label, or select the correct can from the pantry. Little things like this that the sighted don’t give a second thought to can add a lot of hassle to the day of a blind person. Now, with just a tap, the blind can ask sighted volunteers via the Be My Eyes app to eliminate the complication.

The sighted person simply takes a look using live video chat, describes what it is they see to the non-seeing person, and then both move on with their day effortlessly. It works very similarly to taxi apps; people in need are matched with people available to help at the time of the request. Essentially, Be My Eyes is crowdsourcing vision for the blind.

http://designtoimprovelife.dk/the-voice/
The vOICe design provides the blind user with live visual input from a head-mounted camera by capturing and converting this live video on-the-fly into closely corresponding “visual sounds” that convey the visual content. The blind user learns to mentally interpret the complex sounds as visual views.

With a total population of approximately 180 million and having 30 million individuals having one form of disability or another, the need for change and investment is great. I recently read that Rainbow Chickens in South Africa is on a knife edge and may close. On the bright side this may be an opportunity to approach them and suggest a partnership that will enable a win-win situation both for yourself and the organisation. Just a thought.

RAINBOW's chickens (http://www.rclfoods.com/rainbowchicken) are delicious roast dinners, the perfect Isishebo and succulent braais. We produce 4-million birds per week, creating 4-million memorable meal occasions per week. With these inspired insights, RAINBOW is evolving into a consumer-driven brand that recognises that consumers are much more than just people at the end of the supply chain.

Exciting program and solution. Was wondering if you had considered collaborating with another Challenge Group? There may be some synergy and together an improved opportunity for success.

Accessible information for people with albinism in Tanzania,"all about albinism" just a phone call away
https://challenges.openideo.com/challenge/disability-inclusion/improve/accessible-information-for-people-with-albinism-in-tanzania-just-a-phone-call-away