Assertion: astigmatism | /r/HasProperty | a vision condition
Facets:
Source sentences:
text: Astigmatism is a vision condition that causes blurred and double vision to the irregularly shaped cornea.
text: Astigmatism is a vision condition in which light entering the eye can't be equally focused all at once.
text: Astigmatism is a vision condition that causes blurred vision due to an irregular shape of the cornea (the clear front cover of the eye) or by a curvature of the lens inside the eye.