Examples from the Web for eyewash
All the high-sounding arguments for a moral world and all the laws on the books implementing those arguments are just eyewash.The House from Nowhere|Arthur G. Stangland
The eye is then covered with a cloth, kept wet with an eyewash, as for external ophthalmia.Special Report on Diseases of the Horse|United States Department of Agriculture
The leaves and flowers are also used as expectorants, and the juice of the fruit and leaves is used as an eyewash.
British Dictionary definitions for eyewash
Word Origin and History for eyewash
"a wash or lotion for the eyes," 1866, from eye (n.) + wash (n.). Colloquial use for "blarney, humbug" (1884), chiefly British, is perhaps from the notion of "something intended to obscure or conceal facts or true motives." But this, and expression my eye also may be the verbal equivalent of the wink that indicates one doesn't believe what has been said (cf. French mon oeil in same sense, accompanied by a knowing pointing of a finger to the eye).