Mr. A, you and your sister may have heard of this, or maybe not... interesting idea, would be cool to give 'em a test run.
http://www.esighteyewear.com/esight-eyewear
http://www.esighteyewear.com/faq
Quote
eSight is the only intelligent eyewear that enables those with legal blindness to actually see
Can eSight help me to see?
eSight may be helpful for people with:
? Macular Degeneration
? Diabetic Retinopathy
? Stargardt?s Disease
? Ocular Albinism
? Leber?s Hereditary Optic Neuropathy
? Cone-Rod Dystrophy
? Some forms of Glaucoma
? Other low vision conditions
eSight eyewear is currently recommended for those with visual acuity between 20/60 and 20/400.
via http://www.cbc.ca/news/canada/ottawa/legally-blind-grade-4-student-sees-with-high-tech-glasses-1.2186517