The present invention relates to an ophthalmic composition provided in the form of a nanoemulsion, prepared by the self-emulsification, in an aqueous medium, of a specific oil and a surfactant together with cyclosporin A which serves as an active ingredient. Since the ophthalmic composition according to the present invention enables sterile filtration to be carried out using a 0.22 µm filter, manufacturing costs can be reduced and the composition can be easily implemented at manufacturing sites. Also, the composition of the present invention minimizes the use of additives and has excellent stability.