I kind of missed that.
It wasn't shown but it's implied that her brother poured that liquid Plumber stuff into her eye.
Wow, that's horrible.
It is. The whole movie was so bleak and awful but a good movie.
I have seen the movie, but for some reason I thought he took out his sister's eye while playing with the bow and arrows his father got him?
That was my interpretation of how it must of happened.
Jesus! I thought the liquid thing was about the mom finding out he had flushed the Hamster down the garbage disposal.
This was also my interpretation of the events.