iCare pioneered rebound tonometry: the technology that lets eye care professionals measure intraocular pressure without anesthetic drops, air, or calibration. Since its invention over two decades ago, iCare's rebound technology has been validated in more than 300 clinical studies, establishing iCare as the market leader in handheld tonometry. Every device carries the same promise: fast, effortless, and reliable eye care, trusted by professionals worldwide.