"Eau de Cologne is occasionally dropped into the eyes..."

Eau de Cologne is occasionally dropped into the eyes, with the effect of making them brighter. The operation is painful, and it is said that half a dozen drops of whisky and the same quantity of Eau de Cologne, eaten on a lump of sugar, is quite as effective.

- Barkham Burroughs’ Encyclopaedia of Astounding Facts and Useful Information (1889), via Project Gutenberg Project, via.