Tobex ophthalmic ointment refers to the trade name, its medical name is called tobramycin ophthalmic ointment. It is mainly used for topical anti-infective treatment of infections with sensitive bacteria of external ocular origin, and the control of bacterial infection should be observed when applying it. The dosage of this ointment is to be used once every four hours for mild or moderate infections, and then one or two drops can be applied to the affected eye each time, and once every hour for severe infections, and two drops each time. The dosage can be reduced after the disease is in remission until the disease is cured. Tobramycin is generally available as eye drops and ointment, and can be used clinically in combination, with eye drops during the day and ointment at night.