Assertion: astigmatism astigmatism astigmatism | /r/HasProperty | a condition of the eye
Facets:
value: due to lens
type: CAUSE
value: due to an improperly-shaped cornea
type: CAUSE
Source sentences:
text: Astigmatism Astigmatism is a condition of the eye characterized by blurred vision, due to an improperly-shaped cornea or lens.