Sclera is the white outermost layer of the eye. It is a tough, fibrous membrane composed of collagen and elastic fibres. It serves as a protective covering for the other layers of the eye and helps to maintain the shape of the eyeball. It also helps the eyes to move smoothly in their sockets. The sclera can be seen when looking directly at the eye, and it appears as a white, opaque outer layer.
sclara, sklara, sklera