The Collaborative International Dictionary of English v.0.48:

Eyewash \Eye"wash\, n.
   See Eyewater.
   [1913 Webster]

WordNet (r) 3.0 (2006):

eyewash
    n 1: lotion consisting of a solution used as a cleanser for the
         eyes [syn: eye-lotion, eyewash, collyrium]

Moby Thesaurus II by Grady Ward, 1.0:

82 Moby Thesaurus words for "eyewash":
   adulation, balls, balm, baloney, balsam, bilge, blague,
   blandishment, blarney, bosh, brilliantine, bull, bullshit, bunk,
   bunkum, cajolement, cajolery, cerate, chrism, claptrap, cold cream,
   collyrium, compliment, crap, cream, demulcent, embrocation,
   emollient, eye-lotion, eyewater, face cream, fair words, fawning,
   flam, flattery, flimflam, gammon, grease, hand lotion, hogwash,
   hoke, hokum, honeyed phrases, honeyed words, hooey, horsefeathers,
   humbug, humbuggery, incense, inunction, inunctum, jiggery-pokery,
   lanolin, lenitive, liniment, lotion, malarkey, moonshine, nard,
   oil, ointment, palaver, pomade, pomatum, praise, pretty lies, rot,
   salve, soap, soft soap, soothing syrup, spikenard, sweet nothings,
   sweet talk, sweet words, sycophancy, twaddle, unction, unguent,
   unguentum, vulnerary, wheedling