IKERVIS (ciclosporin) is a prescription medication formulated as an eye drop solution, primarily used for the treatment of severe keratitis in adult patients with dry eye disease, which has not improved with tear substitutes. Keratitis is an inflammation of the cornea, the clear layer on the front of the eye, and can be quite painful and lead to complications if left untreated. IKERVIS works by suppressing the immune system in the eye, reducing inflammation, and providing relief from the symptoms associated with severe keratitis. It is part of the calcineurin inhibitor class of medications and is specifically designed for ophthalmic use. Patients prescribed IKERVIS must follow their healthcare provider's instructions closely to ensure the best possible outcome from the treatment.