Assertion: astigmatism's cornea | /r/CapableOf | become thin
Facets:
value: progressively
type: MANNER
value: in this condition
type: TEMPORAL
value: in shape
type: OTHER
value: with keratoconus
type: OTHER
Source sentences:
text: With keratoconus, the cornea becomes thin and begins to bulge.
text: In this condition, the cornea becomes thin and cone-like in shape.
text: A rare cause of astigmatism occurs when the cornea progressively becomes cone-shaped and thin.