In Spidersilk the novel, there are many characters who suffer from blindness. These characters are able to get around due to special technology. In our own world, we have been trying to develop forms of technology to help those who suffer from blindness see again. Recently, a blind inventor came up with a device that feeds information to a blind person using special goggles. This essential describes an atmosphere instantaneously, so the person can move around more freely.

For more on this invention, check out this link:

http://www.baltimoresun.com/health/bs-hs-wearable-tech-for-blind-20171003-story.html