Sclera: The term sclera is derived from Greek

The term sclera is derived from Greek word scleros meaning "hard". Sclera is an opaque, elastic, and resilient tissue of the eye. It can be compared with an incomplete shell comprising approximately 90% (five-sixths) of the outer coat of the eye. Anteriorly it begins at the limbus and terminates at the optic nerve canal posteriorly. The primary function of the sclera is to protect the eye and maintain the shape of the eye ball. Amazing Fact: Human beings are the only primates with white ... What Is Sclera ? The sclera is referred to as the “ white of the eyes .” The word sclera comes from the Greek word “skleros,” which suggests hard. The plural of the sclera is sclerae. The sclera is that the white part of the eye, which forms a troublesome, outer coating to guard the eyeball. The sclera is covered with a membrane called conjunctive. And it is the thickest around the optic nerve. The human eye is a complex organ that functions analogously like a camera. Light enters ... Sclera proper sclera proper or scleral stroma is also called substantia propria. Ultrasructurally, sclera is composed of collagen bundles, elastic fibres, fibroblasts and ground substances. • These ground substances are proteoglycans and glycoproteins. Learn about the sclera , the outermost layer of the eye, made of dense connective tissue. Find out its function, structure, and how it changes in different conditions.