Z Pred Eye Drop is used to treat bacterial infections of the eyes. Z Pred Eye Drop treats bacterial infections of the eyes, such as conjunctivitis or pink eye. It inhibits the growth of bacteria that cause infections and relieves discomfort, swelling, redness, stinging, or irritation in the eyes. Use it 2-3 times each day for at least a week, or as directed by your doctor. Your symptoms may improve after using Z Pred Eye Drop. However, be sure to finish the entire course of treatment. This will ensure that the illness is entirely healed and won't return.