Efficacy and Safety Study of Cyclosporine 0.010% to Treat Atopic Keratoconjunctivitis

This study evaluates the efficacy and safety of Cyclosporine 0.010% eye drops in the treatment of Atopic Keratoconjunctivitis (chronic and severe inflammation of the eye). The study consists of a double-masked phase, and open-labeled phase, and an open-labeled maintenance phase. For the first 3 months of the study, patients will receive either masked Cyclosporine 0.010% eye drops or vehicle four times daily; for the next 6 months, patients may receive open-labeled Cyclosporine 0.010% eye drops four times daily. At month 9, patients who are in remission, will be re-randomized to receive either open-labeled Cyclosporine 0.010% eye drops four times daily or twice daily.