The leaves and flowers are also used as expectorants, and the juice of the fruit and leaves is used as an eyewash.
The eye is then covered with a cloth, kept wet with an eyewash, as for external ophthalmia.
All the high-sounding arguments for a moral world and all the laws on the books implementing those arguments are just 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).
eyewash eye·wash (ī'wŏsh')
A soothing solution for bathing or medicating the eye.