No Astigmatism is not contagious and there's no way to catch astigmatism from someone who has it.
Astigmatism is a pretty common condition in which the surface of the eye, or cornea, is not curved in the normal way, leading to blurred vision.
This can occur at birth and is usually hereditary and can be passed down through genes during the pregnancy of the baby.
So yes in a way it can be that a kid gets astigmatism from another family member or even the mother or father or even a brother or sister but not because they are around the person who has astigmatism.
The astigmatism can be passed down through the blood and genes genetically.