I am looking for a young adult fantasy / sci-fi book written somewhere between the sixties and the nineties. At the start, a girl is woken up early in the morning by one of her family members. She's a slave. She makes bread and somewhere along the line they came to town square with a student, a circle, and a dragon master who came and chose the kids that were accepted into the academy. It was supposedly very dangerous to train dragons. One of the ways the dragon master decided who was brave enough was that he lifted up each eyelid one by one. It's set on an Earth colony and every so often, when one planet gets closer to another, dragons come over to attack, which is why the colony trains their dragons.
No, it's not Anne McCaffrey or Jane Yolen's Hearts Blood.