Assertion: astigmatism | /r/Causes | blurred or distorted vision
Facets:
value: in the eyes
type: LOCATION
Source sentences:
text: Astigmatism is a refractive error that causes blurred or distorted vision.
text: Astigmatism is a condition that causes blurry or distorted vision in the eyes.
text: Astigmatism is a common and usually minor eye condition that causes blurred or distorted vision.