Moxifloxacin eye drops are a type of antibiotic used to treat bacterial infections of the eye, including bacterial conjunctivitis (pink eye) . Moxifloxacin belongs to a class of antibiotics called fluoroquinolones, which work by killing the bacteria that cause infection. The eye drops are usually used three times a day for seven days, and it is important to use them exactly as directed by a doctor or pharmacist. It is also important to avoid touching the tip of the dropper to anything, including the eye or fingertips, to prevent contamination. If symptoms do not improve or get worse during treatment, or if other problems with the eyes develop, it is important to contact a doctor.