Think so?  Oh, you might be interested to know that he became blind shortly after being born.
He only became blind shortly after being born, not congential
I for one don't like carrie underwood Oh really?  In 2005's American Idol she won, and then rose to fame! Her voice is nasally Hmm, think so?  Did you know her solo debut album broke sales records?   Best seller album in the country genre of the last fourteen years in fact! Wow I didn't know that.  Do you know anything about Merle Haggard? Yes I do!  He was born in 1937, and was an American songwriter, country singer, fiddler and guitarist. Oh I see.  What about Stevie Wonder, can you tell me anything about him? Yes, sure.  Did you know his birth name was Stevland Hardaway Judkins?  He was born in 1950.  His stage name was Stevie Wonder, and not only was he a singer and songwriter, but also produced records and is a multi-instrumentalist. one of the best
He has been blind since shortly after birth.