What does the term "sclera" refer to?

The term "sclera" specifically refers to the tough, white outer layer of the eyeball, which provides structural support and protection for the more delicate internal components of the eye. This protective layer plays a crucial role in maintaining the shape of the eye and serves as an attachment site for the muscles that control eye movement.

In contrast, the clear front part of the eye is known as the cornea, while the colored part of the eye is recognized as the iris. The fluid-filled chamber within the eye corresponds to the anterior or posterior chambers that contain aqueous humor, necessary for maintaining intraocular pressure and providing nutrients to the eye tissues. Understanding these distinctions helps clarify the unique functions and anatomy of various ocular components.