What is the white tissue surrounding the cornea called?

The white tissue surrounding the cornea is known as the sclera. It is the tough, fibrous outer layer of the eye that provides structure and protection. The sclera extends around the entire eye, forming a protective shell that maintains the shape of the eye and serves as an attachment point for the eye muscles. This structure is crucial for maintaining the integrity of the eye and plays a significant role in its overall function.

The choroid is a layer of blood vessels located beneath the sclera, primarily involved in nourishing the retina. The retina is the innermost layer of the eye where light is converted into neural signals for vision. The conjunctiva, on the other hand, is a thin, transparent membrane that covers the front of the eyeball and lines the eyelids, providing additional protection and lubrication. Understanding the distinct roles of these structures helps clarify why the sclera is specifically identified as the white tissue surrounding the cornea.