Elixir of Sight

Description
Brewing elixirs is a dangerous, often fatal pursuit. The wrong combination of ingredients is poisonous, or worse. The larger problem, however, is that apothecaries are loathe to share their secrets with one another, for fear of losing their business advantage. Which means that each and every practitioner has their own specific set of recipes for creating a desired effect.

This elixir seems to give a boost to eyesight, useful for archers.