It's not be easy for them, but there are a few, here are two examples.
Hats off to them.
For the first one with Steven Iglesias, I think that is very cool, but I feel like the non-blind person with him doubles the chance for
tells doesn't it? Here is my idea that would minimize tells (if allowed)
Steven (blind player) sits at the table and makes all of the poker decisions. His buddy does not need to be at the table to whisper cards and action (possibly increasing more chance of giving off tells when more people are visible). They could have have a camera locked at the board and use a hole card cam so his buddy can announce the action via a headset and headphones. Steven (the blind player) would just have to wear headphones to hear the action (which blends in anyway since lots of players use them for music/drowning out sound).
A potential third person may be at the table to bet the chip amounts if Steven needs them, but I think the dealer could just move the chips for them if Steven wants them to. If a third person does bet the chips, then they do not need to hear the hole cards (nor see them) so they have no idea what cards he has and hence won't give off any tells. I think it is more fair if other players only get tells from the player (Steven) as being legally blind doesn't negate him giving off tells: but the more people that know his cards, and helping him at the table, just increases the chance of tells revealing information.
In summary, does his friend need to be right next to him at the table anyway? It would make more sense to me if he narrated the action from the next room over via a headset. Ideally, only Steven would need to be at the table. I'm sure the other players would have no problem with this accommodation if they knew that there were two of them with one narrating the action via headphones.