The present invention relates in general to the field of drug delivery systems for treating ocular diseases in animals, and more specifically, to a drug delivery system and method of treating Infectious Bovine Keratoconjunctivitis (“IBK”) in cattle, commonly known as “pinkeye.” The drug delivery system and method may include a contact lens that has been infused with drugs for treating IBK, such as oxytetracycline, penicillin, streptomycin, tetracycline, gentamicin, cloxacillin or combinations thereof. The medicated contact lens may be placed in contact with the cornea and/or conjunctiva of the afflicted eye of the animal. Drugs are released from the medicated contact lens via diffusion into the cornea and/or conjunctiva of the eye. After treatment, the contact lens may harmlessly dissolve in the eye wherein it is washed away via tear secretions.
