hard lens


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.

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British Dictionary definitions for hard lens

hard lens

noun

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
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012