Visually impaired can use linux!
Sometimes I forget how lucky I am to see. Not everyone has that gift. If you do not have that gift, does not mean you should be limited in using computers. Traditionally you had to let someone install linux for you, Several Linux distros now allow even the seeing and or hearing impaired to install and use Linux. As a test for myself, I took the Debian linux distro to see if I could install and use it blindfolded. As many times as I have done the text install of Linux, I did not do very well with the audio commanded install of Debian Linux (www.debian.org). I am sure they have improved it. Then again they never advertized it as a distro for the blind. (You use the speech synthesis option). Later you might need to install Orca if you want to use the gui. But then you can use the distros meant to be used for the handicapped such as Arch (http://talkingarch.tk/). They even have an audio not video tutorial. You could also use Vinux ( vinux project.org...