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varifocal

British  
/ ˈvɛərɪˌfəʊkəl /

adjective

  1. optics having a focus that can vary

  2. relating to a lens that is graduated to permit any length of vision between near and distant

"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

Example Sentences

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For instance, the leading varifocal lens brand, Varilux, is made by Essilor.

From BBC