Assertion: astigmatism | /r/CreatedBy | irregularity
Facets:
value: in the shape of a person
type: OTHER
Source sentences:
text: Astigmatism is caused by irregularities in the shape of the outer surface of the eye, called the cornea.
text: Astigmatism is an optical imperfection that prevents the eye from properly focusing light, caused by irregularities in the shape of a person