Assertion: astigmatism's shape | /r/CapableOf | create different refractive
Facets:
Source sentences:
text: The shape of toric contact lenses creates different refractive, or focusing, powers on the vertical and horizontal orientations.
text: The special shape of a toric lens creates different refractive, or focusing, powers that can help correct either a corneal or a lenticular astigmatism.