Dictionary  gas'-per•me•a•ble lens'Pronunciation: (gas'pûr"mē-u-bul), [key] a semisoft contact lens, usually removed each day, that allows air to pass through to the eye and affords a wider range of vision corrections than a soft contact lens. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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