How do I accommodate a blind player at my remote table?

For remote play at our table, we use a camera stuck on a microphone-boom-arm that we can rotate by 360°. We found out that we prefer it to have our rest position at about 45°, instead of top-down because the top-down angle creates nausea for some of our players, and it simulates sitting at a table. We use a 19 by 19 go-board with numbered and lettered tiles to make calls based on a grid for combat encounters and other visualisation when appropriate. For indicating features, we use a mix of miniatures that were part of the 2002 D&D boardgame by Hasbro and cardboard printouts that create terrain objects by sliding them together at a 90° angle with little plastic sockets, so they don’t topple over.

I designed our base set-up for remote play to feign an in-person feeling by visualisation.

I will have a remote guest player for three sessions who is blind, and I’m looking for preparations and ways to accommodate them and make our set-up as accessible as reasonable. What can I do to optimise the experience for them in particular, and so in turn for all of us?