Levofloxacin Hydrochloride Eye Drops are antibiotic eye drops with antibacterial effect, which can be used to treat eye infections such as bacterial conjunctivitis and bacterial keratitis. Levofloxacin Hydrochloride Eye Drops belongs to the quinolone class of drugs, clinical mainly used for the treatment of bacterial conjunctivitis and keratitis and other eye infectious diseases caused by sensitive bacteria. Quinolone antibiotics have strong antibacterial activity, and their mechanism of action is to act on the bacterial DNA helicase, so that the bacterial DNA can not form a super-helix, chromosome damage and thus produce sterilization. The use of levofloxacin hydrochloride eye drops is not recommended for patients who are allergic to quinolones or levofloxacin, and adverse reactions such as eye pain, photophobia, and ocular warmth have been observed with the use of eye drops. And because levofloxacin hydrochloride belongs to the antibiotic class of drugs, it is not recommended to use for a long time, patients may produce drug resistance, affecting the effectiveness of drug therapy. It is recommended that patients follow the doctor’s instructions to use levofloxacin hydrochloride eye drops, do not use without authorization, to avoid causing adverse reactions.