Nedarim 64b relates of the Gemara: "it was taught in a baraita: Four are considered as if they were dead: A pauper, and a leper, and a blind person, and one who has no children."
Could one make an argument for a woman who wants out of her marriage that if her husband has become any of those four, it is as if he had died and therefore she is not an aguna?
Or, since a woman is entitled to a divorce if her husband cannot maintain her (i:e; a pauper, plus Ketubot 48a:1-13 states that "she ascends with him to his social status and does not descend with him") or give her children, then do we say that the middle two likewise automatically entitle her to divorce (since a leper might be repulsive to his wife and a blind man might also not be able to maintain her)?
