hard lens
- 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.
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Compare soft lens.
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
hard lens
- a rigid plastic lens which floats on the layer of tears in front of the cornea, worn to correct defects of visionCompare gas-permeable lens, soft lens
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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