Yanky55, thanks.
YankDownUnder, I actually saw a chashuve Ben Torah who nebech can’t see, davening in the Bais Medrash of a Choshuveh Yeshiva with many Choshuveh Rabbonim. The dog sat in the corner with him and didn’t bother anybody. Apparently, this was totally accepted.
I seem to recall that Reb Moshe has a tshuvah on this and says it is fine. Just checked and it is in OC 1,45. Not only does Reb Moshe say that otherwise the person would have to be misbatel from tefilah btzibur and megillah and krias hatorah his whole life, but also that not being able to go to shul would be tremendous agmas nefesh for him, especially on yomim noraim when everybody goes.
Boruch Hashem the klal was given someone like Reb Moshe who was a godol in menschalchkeit.