Here is a free app designed specifically for visually impaired. It is developed with support from Research to Prevent Blindness foundation.
Have you ever had difficulty in finding info on direction boards, or a book/product on shelf? Here comes a smart magnifying glass to help.
The way it works is like using Google. You use Google search in the digital world.
Now you can use the app to search in the physical world. Point your camera to documents, product labels, bank statements, or restaurant menus. Speak your keywords, the app will locate the areas of interest for you. Then you may zoom in to read details.