Here's an eye opener. Article doesn't state in perfect detail if they're talking about OC, but it looks like it to me. Goes into details of definition of 'legally blind' versus completely and totally blind. Up to Sheriff in each county to make the determination. I like that they got completely blind since birth Stevie Wonder to say it was stupid a dumb idea - they didn't state if Stevie has sighted folks around him that carry his guns....
http://www.desmoinesregister.com/article/20130908/NEWS/309080061/?odyssey=nav|head&nclick_check=1
http://www.desmoinesregister.com/article/20130908/NEWS/309080061/?odyssey=nav|head&nclick_check=1