The Gemara tells us that a man may not marry a woman without first seeing her because if she turns out to be displeasing to him then he will transgress the mitzvah of "Ve'ahavtah lerei'acha kamocha"(loving one's fellow as himself). The assumption is that this refers to whatever may be seen by him within the bounds of the laws of Tzniyus (loosely translated as "modesty")
Since a blind man cannot see, does this not apply and may he therefore get married without "seeing" his prospective bride?
Or do we say that a blind man "sees" with his hands and if she would be displeasing to him there would be the problem of Ve'ahavta?
If that is the case is there now a heter for him to touch her in order to fulfill the mitzvah of getting married and in order to not transgress the mitzvah of ve'ahavta?