Not a sphere: The lens is not completely spherical shaped. Most likely you are talking about a contact lens which is toric-- it corrects for some amount of astigmatism which a spheric lens will not do.
Answered 8/8/2013
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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