Toric lens
noun
1.
a lens used to correct astigmatism, having one of its surfaces shaped like part of a torus so that its focal lengths are different in different meridians
noun
a type of contact lens curved to have a different focal length along each axis to correct astigmatism
Examples
Properly fitting a toric lens takes more of your eyecare practitioner’s time and requires more expertise than regular contacts.
Word Origin
1954
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