The present invention provides a composition for ocular topical administration for treating ocular hypertension and glaucoma, comprising latanoprost as an active ingredient, and (a) a polyol and/or sugar alcohol, (b) a nonionic surface active agent, and (c) an edetic acid compound. The composition of the present invention comprises lower amount of preservatives such as benzalkonium chloride comparative to the conventional product and therefore, can reduce incidence of the adverse side effects caused by the preservatives. In addition, the composition of the present invention can be stored stably at room temperatures for a long term.
