A corneal implant is a medical device placed in the eye to improve vision. It is often used to treat conditions like keratoconus, where the cornea becomes thin and irregularly shaped. The implant helps to reshape the cornea, allowing light to focus more accurately on the retina, which can enhance visual clarity. These implants can be made from various materials, including biocompatible polymers. The procedure is typically performed by an ophthalmologist and may involve minimal recovery time. Patients may experience improved vision and reduced dependence on glasses or contact lenses after the surgery.