WordNet (r) 3.0 (2006):

contact lens
    n 1: a thin curved glass or plastic lens designed to fit over
         the cornea in order to correct vision or to deliver
         medication [syn: contact, contact lens]

Moby Thesaurus II by Grady Ward, 1.0:

30 Moby Thesaurus words for "contact lens":
   Polaroid glasses, bifocals, blinkers, cheaters, colored glasses,
   dark glasses, divided spectacles, eyeglass, eyeglasses, glasses,
   goggles, granny glasses, harlequin glasses, horn-rimmed glasses,
   lorgnette, lorgnon, mini-specs, monocle, nippers, pair of glasses,
   peepers, quizzing glass, readers, reading glasses, shades, specs,
   spectacles, sun-specs, sunglasses, trifocals