👉 The cornea is a transparent layer of tissue that covers the back surface of the eye. It serves as a barrier between the eye and the external environment, allowing light to pass through while preventing it from entering directly into the eye's eye canal. The cornea has three main layers: an inner stroma (the outermost layer), an outer stroma (the middle layer), and the fovea (the center of the corneal surface). Additionally, there is a thin layer of
