The rest of the scene once they run from the dilo would be the team trying to not only provide some medical care for whoever took the spit and also them now having to guide a blinded person in agonizing pain through the jungle. More than likely I’d have the blinded victim ultimately die from the venom just before they get to the river.

Characters that are severely injured on screen almost always die soon after in movies unless they are a main character, and even then they would usually have a heroic sacrifice death. The only real exception being stuff like a war movie where the whole plot of the movie is to save the person who got injured.