Cosby lawyers say comedian is too blind to defend himself

Bill Cosby's eyesight has deteriorated to the point where he cannot identify his accusers in photographs or otherwise help with his defence, his lawyers said as they waged a multi pronged effort to get the sexual assault case against the 79-year-old comedian thrown out.

His attorneys also portrayed Cosby as a political "pawn" who is being prosecuted only because a suburban Philadelphia district attorney used the public furore over the comic to get elected last year.