Khune joined the Bafana Bafana camp on Wednesday after seeing a specialist to assess his injury.
The goalkeeper has been training with the team since his arrival at the camp.
READ: WATCH: Khune training with Bafana
“The coordination was done to test his vision. His vision is not greatly impaired, but we don’t know how a mask will impair that or how he will feel banging around on the ground,” said Baxter.
Baxter has Wayne Sandilands and Ronwen Williams as the other goalkeeper should Khune be unavailable for the must-win clash against Senegal.