Tobra Eye Drop is an antibiotic that is used to treat bacterial infections of the eye and eyelids (such as conjunctivitis) (e.g., blepharitis). It could also aid in the prevention of infection following an eye injury or surgery. Tobra Eye Drop inhibits bacterial development and hence aids in the treatment of the underlying infection. Follow your doctor's instructions for taking this medicine exactly. Before administering any additional eye treatment, wait at least 5 minutes. It should be used on a regular basis, as directed by your doctor, at evenly spaced time intervals. Even if you feel better, do not miss any doses and complete the entire course of treatment. Stopping the treatment too soon could cause the infection to recur or worsen.