eyewash

The washing out of the eyes with copious solution (usually water alone) to quickly remove an irritant, as for example in laboratories and industrial plants; the washing solution itself.

an eyewash station on every floor of the building

a bottle of eyewash

A soothing medicated lotion for the eyes.

Camouflage; disguise; false front; pretense; nonsense.

Near-synonyms: whitewash, window dressing

Talking of being eaten by dogs, there's a dachshund at Brinkley who when you first meet him will give you the impression that he plans to convert you into a light snack between his regular meals. Pay no attention. It's all eyewash. […] He wouldn't hurt a fly, but he has to put up a front because his name's Poppet. One can readily appreciate that when a dog hears himself addressed day in and day out as Poppet, he feels he must throw his weight about. His self-respect demands it.

To fool with nonsense or flattery.

To keep information secret by sending false information to many people in one's own organization, and correct information to a select few.

But others said that eyewashing was a standard security practice that had been in existence for decades.