Abstract: Objective To provide reference for standard management of the marks of ophthalmic preparations extended period after use. Methods The related information of 38 kinds of ophthalmic preparations were analyzed statistically, such as drug names, specification, producing area, validity period and extended period after use. Results 18 kinds of ophthalmic preparations were marked the extend period after used in all, accounting for 47.4%. 10 of them were marked on the precautions of package insert; 6 of them were marked on the storage; 1 of them was marked on the period of validity and 1 of them was marked on the package box. Conclusion More than half of ophthalmic preparations were not marked the extended period after use. We propose to strengthen the supervision of such products, standardize labeling information and prevent risk of drug use.

Key words: ophthalmic preparations, package insert, investigation