Assertion: photochromic lens | /r/HasAspect | designed center area
Facets:
value: for fit
type: PURPOSE
value: for improved vision
type: PURPOSE
value: spherically
type: MANNER
Source sentences:
text: Even at high prescriptions some high myope prescriptions with small lenses may not see any difference, since some aspheric lenses have a spherically designed center area for improved vision and fit.