I think there's money to be had. Insurance covers assistive devices for the blind like screen readers, which can be quite expensive. I can't find data on how ma

I think there's money to be had. Insurance covers assistive devices for the blind like screen readers, which can be quite expensive. I can't find data on how many completely blind people there are in the developed world (many, like my mom, use a blind cane but can still read with their peripheral vision and large print), but I imagine there'd be enough to support a small start-up.