Jesus said: You have heard it said: ‘If the blind lead the blind, they both shall fall into the pit.  Jesus restored sight to Bartimeus, a blind elderly man from Jericho.  Jesus restored sight to Josiah, a blind beggar that solicit alm by the temple, and did this on the Sabbath.  The rabbis taught that all such cases of blindness from birth were caused by sin. 
Jesus said: When you give a banquet, sometimes bid the poor, the maimed, and the blind. In this way you shall be blessed in your heart, for you well know that the lame and the halt cannot repay you for your loving ministry.