gas-permeable lens

American  

[gas-pur-mee-uh-buhl] / ˈgæsˌpɜr mi ə bəl /

noun

1. 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.

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gas-permeable lens British  

noun

1.  GP.  a contact lens made of rigid plastic that is more permeable to air than a standard hard lens Compare hard lens soft lens

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