Antibacterial eye drops commonly used are mainly aminoglycoside and quinolone eye drops. Commonly used quinolone eye drops are ofloxacin eye drops, levofloxacin eye drops, gatifloxacin eye drops, and aminoglycosides are tobramycin eye drops. Antibacterial eye drops like these are mainly for the treatment of sensitive bacterial infections and can be used alone or in combination, their mechanism of action is not exactly the same. The purpose of using antibacterial eye drops is to carry out sterilization or inhibit bacterial reproduction, generally based on experience, if the effect of the drug is not obvious, it is recommended to carry out bacterial culture and drug sensitivity test, according to the results of the drug sensitivity test, and then choose the appropriate symptomatic antibacterial eye drops for anti-inflammatory symptomatic treatment.