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.