The present invention provides an ophthalmological aqueous composition containing (A) a terpenoid, (B) zinc chloride, and (C) at least one type selected from a group consisting of a cellulose polymer compound, a vinyl polymer compound, polyethylene glycol, and a dextran. This ophthalmological aqueous composition: is capable of suppressing a decrease over the long term in the amount of the terpenoid contained by suppressing adsorption of the terpenoid by a container; and furthermore, has excellent histamine release inhibitory activity, rheum inhibitory activity, and the like.