Meaning Of The Word Hard lens

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Hard lens Meaning

Hard lens Definition
Hard lens Definition

What's The Definition Of Hard lens?

hard lens in American English
noun: a contact lens of rigid plastic or silicon, exerting light pressure on the cornea of the eye, used for correcting various vision problems including astigmatism

hard lens in British English
noun: a rigid plastic lens which floats on the layer of tears in front of the cornea, worn to correct defects of vision

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