11.
According to the ghost, Yes,
*Walks in*
????????: Yes, What can i do you two?
me: Me friend went blind while we were in the Tower of Demons... and I'm not sure why
?????????: Well, just set her down on this chair, and We'll take a look at her.
me: Okay. *Puts wings on a chair like that of the Eye doctors*
????????: Hmmmm... What are these? Wings???
Me: I forgot to mention... Her name is Guardian Angel Silv. I call her Wings for short.
???????: Well, it's no wonder She went Blind....