Vigamox (moxifloxacin HCl ophthalmic solution) 0.5% is an 8-methoxy fluoroquinolone anti-infective indicated for the treatment of bacterial conjunctivitis caused by susceptible strains of the following organisms: Corynebacterium species* Micrococcus luteus* Staphylococcus aureus Staphylococcus epidermidis Staphylococcus haemolyticus Staphylococcus hominis Staphylococcus warneri* Streptococcus pneumoniae Streptococcus viridans group Acinetobacter lwoffii* Haemophilus influenzae Haemophilus parainfluenzae* Chlamydia trachomatis *Efficacy for this organism was studied in fewer than 10 infections