The main purpose of cyclosporine eye drops is to treat keratoconjunctivitis sicca, often known as a chronic dry eye condition. They function by lessening ocular irritation and promoting tear production. Their immunosuppression activity does this by preventing T-cell activation and reducing the immune system's response, which causes dryness and pain. When artificial tears and various other therapies fail, cyclosporine eye drops are frequently recommended. They typically occur over a longer period of time in order to offer persistent comfort, and it may take a while before modifications are seen. Common negative outcomes include redness, a burning sensation when applied, and temporary blurring of vision. For long-term usage under medical supervision, they are generally safe.